Subjects

Careers

Open the App

Subjects

Fun with Ionic Bonding: Polyatomic Ions and Transition Metals for Kids

7

0

user profile picture

Liam Blecher

8/7/2025

Chemistry

Ionic Bonding

136

Aug 7, 2025

3 pages

Fun with Ionic Bonding: Polyatomic Ions and Transition Metals for Kids

user profile picture

Liam Blecher

@liamm_ble

This ionic compound contains magnesium and phosphate ions. Magnesium forms... Show more

03.03-lonic Bonding june 20TH, 2023
polyatomic ions are a group of atoms covalently bonded but with an overall positive or negative
charge.

Polyatomic Ions and Transition Metals

This page delves deeper into polyatomic ions and introduces the concept of transition metals in ionic compounds. It provides a list of common polyatomic ions, which is invaluable for students working on ionic compounds with polyatomic ions worksheets.

Vocabulary: Transition metals are elements in the d-block of the periodic table that can form multiple ionic charges.

The page explains the use of parentheses in chemical formulas when multiple polyatomic ions are present. For example, the formula for magnesium phosphate is written as Mg₃(PO₄)₂.

Example: Calcium hydroxide is written as Ca(OH)₂, where (OH) represents the hydroxide ion, and the subscript 2 indicates two hydroxide ions per calcium ion.

The section on transition metals introduces the use of Roman numerals to indicate the charge of the metal ion in compounds. This is crucial for naming ionic compounds with transition metals.

Highlight: Understanding the use of Roman numerals is essential for correctly naming and writing formulas for ionic compounds with transition metals.

03.03-lonic Bonding june 20TH, 2023
polyatomic ions are a group of atoms covalently bonded but with an overall positive or negative
charge.

Naming Ionic Compounds and Lewis Dot Structures

This final page focuses on naming ionic compounds, particularly those involving transition metals, and introduces Lewis dot structures for ionic compounds.

Example: Lead(IV) oxide and Iron(III) carbonate are given as examples of transition metal ionic compounds.

The page provides the formulas for these compounds: PbO₂ for lead(IV) oxide and Fe₂(CO₃)₃ for iron(III) carbonate. These examples demonstrate how to apply the naming conventions for ionic compounds with transition metals.

Highlight: The use of Roman numerals in naming is crucial when the transition metal can have multiple oxidation states.

The page also introduces Lewis dot structures for ionic compounds, using sodium chloride (NaCl) and magnesium oxide (MgO) as examples. These structures visually represent the transfer of electrons in ionic bonding.

Definition: Lewis dot structures are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

This section helps students visualize the electron transfer process in ionic bonding, which is fundamental to understanding the formation of ionic compounds with polyatomic ions.

03.03-lonic Bonding june 20TH, 2023
polyatomic ions are a group of atoms covalently bonded but with an overall positive or negative
charge.

Ionic Bonding with Polyatomic Ions

This page introduces the concept of ionic bonding with polyatomic ions and provides examples of how to write ionic formulas. It also includes a comprehensive periodic table with ion charges for reference.

Definition: Polyatomic ions are groups of atoms covalently bonded but with an overall positive or negative charge. These ions can bond with metals, nonmetals, and other polyatomic ions.

The page demonstrates how to write the ionic formula for magnesium phosphate, a common example used in ionic compounds with polyatomic ions worksheets. It provides two examples of ionic compounds involving polyatomic ions:

  1. Potassium silicate: K₂SiO₃ (element bonded with polyatomic ion)
  2. Ammonium nitrate: NH₄NO₃ (two polyatomic ions bonded together)

Highlight: The periodic table included on this page is particularly useful for identifying the charges of different elements, which is crucial when forming ionic compounds.

The table also includes a section dedicated to polyatomic ions, listing common cations and anions, which is essential for working with ionic compounds with polyatomic ions examples.



We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

 

Chemistry

136

Aug 7, 2025

3 pages

Fun with Ionic Bonding: Polyatomic Ions and Transition Metals for Kids

user profile picture

Liam Blecher

@liamm_ble

This ionic compound contains magnesium and phosphate ions. Magnesium forms a +2 ion, while phosphate is a polyatomic ion with a -3 charge. To balance the charges, we need two magnesium ions (+4 total) and two phosphate ions (-6 total).... Show more

03.03-lonic Bonding june 20TH, 2023
polyatomic ions are a group of atoms covalently bonded but with an overall positive or negative
charge.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Polyatomic Ions and Transition Metals

This page delves deeper into polyatomic ions and introduces the concept of transition metals in ionic compounds. It provides a list of common polyatomic ions, which is invaluable for students working on ionic compounds with polyatomic ions worksheets.

Vocabulary: Transition metals are elements in the d-block of the periodic table that can form multiple ionic charges.

The page explains the use of parentheses in chemical formulas when multiple polyatomic ions are present. For example, the formula for magnesium phosphate is written as Mg₃(PO₄)₂.

Example: Calcium hydroxide is written as Ca(OH)₂, where (OH) represents the hydroxide ion, and the subscript 2 indicates two hydroxide ions per calcium ion.

The section on transition metals introduces the use of Roman numerals to indicate the charge of the metal ion in compounds. This is crucial for naming ionic compounds with transition metals.

Highlight: Understanding the use of Roman numerals is essential for correctly naming and writing formulas for ionic compounds with transition metals.

03.03-lonic Bonding june 20TH, 2023
polyatomic ions are a group of atoms covalently bonded but with an overall positive or negative
charge.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Naming Ionic Compounds and Lewis Dot Structures

This final page focuses on naming ionic compounds, particularly those involving transition metals, and introduces Lewis dot structures for ionic compounds.

Example: Lead(IV) oxide and Iron(III) carbonate are given as examples of transition metal ionic compounds.

The page provides the formulas for these compounds: PbO₂ for lead(IV) oxide and Fe₂(CO₃)₃ for iron(III) carbonate. These examples demonstrate how to apply the naming conventions for ionic compounds with transition metals.

Highlight: The use of Roman numerals in naming is crucial when the transition metal can have multiple oxidation states.

The page also introduces Lewis dot structures for ionic compounds, using sodium chloride (NaCl) and magnesium oxide (MgO) as examples. These structures visually represent the transfer of electrons in ionic bonding.

Definition: Lewis dot structures are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

This section helps students visualize the electron transfer process in ionic bonding, which is fundamental to understanding the formation of ionic compounds with polyatomic ions.

03.03-lonic Bonding june 20TH, 2023
polyatomic ions are a group of atoms covalently bonded but with an overall positive or negative
charge.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Ionic Bonding with Polyatomic Ions

This page introduces the concept of ionic bonding with polyatomic ions and provides examples of how to write ionic formulas. It also includes a comprehensive periodic table with ion charges for reference.

Definition: Polyatomic ions are groups of atoms covalently bonded but with an overall positive or negative charge. These ions can bond with metals, nonmetals, and other polyatomic ions.

The page demonstrates how to write the ionic formula for magnesium phosphate, a common example used in ionic compounds with polyatomic ions worksheets. It provides two examples of ionic compounds involving polyatomic ions:

  1. Potassium silicate: K₂SiO₃ (element bonded with polyatomic ion)
  2. Ammonium nitrate: NH₄NO₃ (two polyatomic ions bonded together)

Highlight: The periodic table included on this page is particularly useful for identifying the charges of different elements, which is crucial when forming ionic compounds.

The table also includes a section dedicated to polyatomic ions, listing common cations and anions, which is essential for working with ionic compounds with polyatomic ions examples.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user