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Easy Guide to Periodic Table Trends: Ionization Energy, Electron Affinity & Atomic Sizes

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Shreeya Ram

7/25/2023

Chemistry

Ionization Studyguide

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Atomic Structure and Properties

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Atomic Structure and Properties

Easy Guide to Periodic Table Trends: Ionization Energy, Electron Affinity & Atomic Sizes

A comprehensive guide to atomic properties and periodic trends focusing on how to calculate ionization energy trends in the periodic table, understanding electron affinity changes in noble gases, and atomic and ionic size differences between cations and anions.

• Detailed exploration of ionization energy trends across and down the periodic table
• Comprehensive coverage of electron affinity and its relationship with atomic structure
• In-depth analysis of atomic and ionic size variations
• Essential mathematical relationships in atomic theory including wavelength and energy calculations
• Practical unit conversion guidelines for scientific measurements

...

7/25/2023

100

Ionization Studyguide • KHDMDCM: kilo, hecto, deca, meter, deci, centi, milli o 1 meter(m)=100 centimeters(cm) o 1 meter(m)=1,000,000,000 (1

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Page 2: Electron Affinity and Periodic Trends

This page delves deeper into periodic trends and introduces the concept of electron affinity. It explains the relationship between atomic number, nuclear charge, and atomic radius.

Definition: Electron affinity is the energy change occurring when an electron is added to a gaseous atom.

Highlight: Electron affinity generally increases across periods and is typically negative, indicating an exothermic process.

Example: Noble gases, beryllium, and magnesium exhibit positive electron affinity, making them exceptions to the general trend.

The text elaborates on how ionization energy changes across different groups, with specific attention to the transitions between groups 2 to 13 and 15 to 16.

Ionization Studyguide • KHDMDCM: kilo, hecto, deca, meter, deci, centi, milli o 1 meter(m)=100 centimeters(cm) o 1 meter(m)=1,000,000,000 (1

View

Page 3: Atomic and Ionic Size Relationships

The final page covers atomic and ionic size relationships, including fundamental equations for energy calculations. It introduces important group classifications and mathematical relationships.

Definition: Atomic radius is defined as half the distance between the nuclei of two bonded identical atoms.

Highlight: Cations are consistently smaller than their parent atoms, while anions are larger than their parent atoms.

Vocabulary:

  • Alkali metals: Elements in Group 1A
  • Alkaline earth metals: Elements in Group 2A

The page concludes with Planck's constant and its relationship to energy calculations, providing a mathematical foundation for understanding atomic properties.

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Subjects

Chemistry

Atomic Structure and Properties

Atomic Structure and Properties

 

Chemistry

•

100

•

Jul 25, 2023

•

3 pages

Easy Guide to Periodic Table Trends: Ionization Energy, Electron Affinity & Atomic Sizes

user profile picture

Shreeya Ram

@shreeyaram_iuea

A comprehensive guide to atomic properties and periodic trends focusing on how to calculate ionization energy trends in the periodic table, understanding electron affinity changes in noble gases, and atomic and ionic size differences between cations and anions

... Show more
Ionization Studyguide • KHDMDCM: kilo, hecto, deca, meter, deci, centi, milli o 1 meter(m)=100 centimeters(cm) o 1 meter(m)=1,000,000,000 (1

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Page 2: Electron Affinity and Periodic Trends

This page delves deeper into periodic trends and introduces the concept of electron affinity. It explains the relationship between atomic number, nuclear charge, and atomic radius.

Definition: Electron affinity is the energy change occurring when an electron is added to a gaseous atom.

Highlight: Electron affinity generally increases across periods and is typically negative, indicating an exothermic process.

Example: Noble gases, beryllium, and magnesium exhibit positive electron affinity, making them exceptions to the general trend.

The text elaborates on how ionization energy changes across different groups, with specific attention to the transitions between groups 2 to 13 and 15 to 16.

Ionization Studyguide • KHDMDCM: kilo, hecto, deca, meter, deci, centi, milli o 1 meter(m)=100 centimeters(cm) o 1 meter(m)=1,000,000,000 (1

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Page 3: Atomic and Ionic Size Relationships

The final page covers atomic and ionic size relationships, including fundamental equations for energy calculations. It introduces important group classifications and mathematical relationships.

Definition: Atomic radius is defined as half the distance between the nuclei of two bonded identical atoms.

Highlight: Cations are consistently smaller than their parent atoms, while anions are larger than their parent atoms.

Vocabulary:

  • Alkali metals: Elements in Group 1A
  • Alkaline earth metals: Elements in Group 2A

The page concludes with Planck's constant and its relationship to energy calculations, providing a mathematical foundation for understanding atomic properties.

Ionization Studyguide • KHDMDCM: kilo, hecto, deca, meter, deci, centi, milli o 1 meter(m)=100 centimeters(cm) o 1 meter(m)=1,000,000,000 (1

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Page 1: Fundamental Concepts and Ionization Energy

The first page introduces essential measurement conversions and establishes core concepts of ionization energy. The metric system prefixes are presented in a systematic order from kilo to milli, with specific focus on meter-to-nanometer conversions.

Definition: Ionization energy is the minimum energy required to remove an electron from the ground state of an atom.

Highlight: First ionization energy (I₁) increases across the periodic table and decreases down the periodic table.

Example: Converting 1 meter to nanometers requires multiplying by 10⁹, resulting in 1,000,000,000 nanometers.

Vocabulary: Ground state refers to the lowest energy state of an electron in an atom.

The page explains how successive ionization energies increase as more electrons are removed, with particular emphasis on the distinction between valence and core electrons in chemical reactions.

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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

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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

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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

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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

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David K

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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

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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

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Marco B

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Elisha

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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

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