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Learning About Legos and Atoms: Greek Philosophers and John Dalton's Discoveries!

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Xiuyi ๐Ÿฆฅ

7/16/2023

Chemistry

Atomic Theory

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Learning About Legos and Atoms: Greek Philosophers and John Dalton's Discoveries!

The atomic theory's evolution from ancient Greek philosophers to modern quantum mechanics, highlighting key discoveries in understanding atomic structure and behavior. The development spans from Ancient greek philosophers analogy legos to Bohr's revolutionary atomic model.

  • Ancient Greek philosophers Democritus and Leucippus first proposed the concept of indivisible particles called atoms
  • John Dalton atomic theory established fundamental principles of atomic behavior and composition
  • J.J. Thomson's discovery of electrons led to the plum pudding model
  • Rutherford's gold foil experiment revealed the nuclear model of the atom
  • Bohr's model introduced energy levels and electron behavior patterns
...

7/16/2023

95

<h2 id="introduction">Introduction</h2> <p>The Atomic Theory has been a subject of study for centuries, and ancient Greek philosophers were

View

Thomson's Electron Discovery and Atomic Model

JJ Thomson's groundbreaking work in 1897 led to the discovery of electrons using Cathode Ray Tubes. His research fundamentally changed our understanding of atomic structure.

Highlight: The plum pudding model depicted atoms as positive spheres with embedded negative electrons.

Example: Thomson used the analogy of chocolate chip cookies to explain his atomic model.

Vocabulary: Crooke's Tube - a glass tube filled with gases used to study electron behavior.

Definition: Electrons are negatively charged subatomic particles with very small mass compared to atoms.

<h2 id="introduction">Introduction</h2> <p>The Atomic Theory has been a subject of study for centuries, and ancient Greek philosophers were

View

Rutherford's Model and Nuclear Discovery

Rutherford's famous gold foil experiment 19091909 revolutionized atomic theory by revealing the nuclear structure of atoms.

Highlight: The experiment showed that atoms are mostly empty space with a dense, positively-charged nucleus.

Example: Alpha particles passing through gold foil demonstrated nuclear structure through their deflection patterns.

Definition: The nuclear model places protons in a central nucleus with orbiting electrons.

Vocabulary: Alpha particles are positively charged particles used in Rutherford's experiment.

James Chadwick's discovery of neutrons in the early 1900s completed our basic understanding of atomic structure.

Definition: Neutrons are neutral particles with mass equal to protons 1amu1 amu.

Highlight: The discovery of neutrons explained the extra mass observed in atoms and helped complete our understanding of atomic structure.

<h2 id="introduction">Introduction</h2> <p>The Atomic Theory has been a subject of study for centuries, and ancient Greek philosophers were

View

Rutherford's Nuclear Model and Chadwick's Neutron

The development of the nuclear model came through Rutherford's famous gold foil experiment.

Highlight: Most alpha particles passed through the gold foil, but some were deflected, leading to the discovery of the nucleus.

Definition: The nuclear model proposed a dense, positively charged center nucleusnucleus surrounded by electrons.

James Chadwick's discovery of neutrons completed our understanding of basic atomic structure.

Vocabulary: AMU AtomicMassUnitAtomic Mass Unit - Where 1 proton = 1 neutron = 1 amu.

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Chemistry

Atomic Structure and Properties

Atomic Structure and Electron Configuration

Atomic, Electron

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Chemistry

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Jul 16, 2023

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Learning About Legos and Atoms: Greek Philosophers and John Dalton's Discoveries!

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Xiuyi ๐Ÿฆฅ

@xiuyiii

The atomic theory's evolution from ancient Greek philosophers to modern quantum mechanics, highlighting key discoveries in understanding atomic structure and behavior. The development spans from Ancient greek philosophers analogy legos to Bohr's revolutionary atomic model.

  • Ancient Greek philosophers Democritus and... Show more

<h2 id="introduction">Introduction</h2> <p>The Atomic Theory has been a subject of study for centuries, and ancient Greek philosophers were

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Thomson's Electron Discovery and Atomic Model

JJ Thomson's groundbreaking work in 1897 led to the discovery of electrons using Cathode Ray Tubes. His research fundamentally changed our understanding of atomic structure.

Highlight: The plum pudding model depicted atoms as positive spheres with embedded negative electrons.

Example: Thomson used the analogy of chocolate chip cookies to explain his atomic model.

Vocabulary: Crooke's Tube - a glass tube filled with gases used to study electron behavior.

Definition: Electrons are negatively charged subatomic particles with very small mass compared to atoms.

<h2 id="introduction">Introduction</h2> <p>The Atomic Theory has been a subject of study for centuries, and ancient Greek philosophers were

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Access to all documents

Improve your grades

Join milions of students

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Rutherford's Model and Nuclear Discovery

Rutherford's famous gold foil experiment 19091909 revolutionized atomic theory by revealing the nuclear structure of atoms.

Highlight: The experiment showed that atoms are mostly empty space with a dense, positively-charged nucleus.

Example: Alpha particles passing through gold foil demonstrated nuclear structure through their deflection patterns.

Definition: The nuclear model places protons in a central nucleus with orbiting electrons.

Vocabulary: Alpha particles are positively charged particles used in Rutherford's experiment.

James Chadwick's discovery of neutrons in the early 1900s completed our basic understanding of atomic structure.

Definition: Neutrons are neutral particles with mass equal to protons 1amu1 amu.

Highlight: The discovery of neutrons explained the extra mass observed in atoms and helped complete our understanding of atomic structure.

<h2 id="introduction">Introduction</h2> <p>The Atomic Theory has been a subject of study for centuries, and ancient Greek philosophers were

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Improve your grades

Join milions of students

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Rutherford's Nuclear Model and Chadwick's Neutron

The development of the nuclear model came through Rutherford's famous gold foil experiment.

Highlight: Most alpha particles passed through the gold foil, but some were deflected, leading to the discovery of the nucleus.

Definition: The nuclear model proposed a dense, positively charged center nucleusnucleus surrounded by electrons.

James Chadwick's discovery of neutrons completed our understanding of basic atomic structure.

Vocabulary: AMU AtomicMassUnitAtomic Mass Unit - Where 1 proton = 1 neutron = 1 amu.

<h2 id="introduction">Introduction</h2> <p>The Atomic Theory has been a subject of study for centuries, and ancient Greek philosophers were

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

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Early Atomic Theory and Dalton's Contributions

The journey of atomic theory begins with Greek philosophers around 400 BC. Democritus and Leucippus developed the concept of atomos using the Greek philosophers analogy legos to explain how the world is constructed from tiny, indivisible particles.

Definition: Atomos were considered the smallest, indivisible particles of matter.

John Dalton's atomic theory 18001800 built upon three fundamental laws:

Highlight: The Law of Conservation of Matter states that matter cannot be created or destroyed, only transformed.

Example: Lavoisier's experiment with burning magnesium demonstrated this law: 2Mg + Oโ‚‚ โ†’ 2MgO

Vocabulary: Law of Definite Proportion - compounds have fixed molecular formulas with whole number ratios.

Quote: "All matter is composed of tiny, indivisible, and indestructible particles called atoms."

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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 itโ€™s very much worth it and youโ€™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 donโ€™t get it!!! In the end I think itโ€™s worth it ๐Ÿ˜Š๐Ÿ‘ โš ๏ธAlso DID I MENTION ITS FREEE YOU DONโ€™T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLYโ—๏ธโ—๏ธโš ๏ธ

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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 help๐Ÿค๐Ÿค

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

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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.๐Ÿ˜‹๐Ÿฉท๐ŸŽ€

Marco B

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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 ๐Ÿ˜๐Ÿ˜๐Ÿ˜ฒ๐Ÿค‘๐Ÿ’—โœจ๐ŸŽ€๐Ÿ˜ฎ

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 Iโ€™ve seen! Geometry too!

Paul T

iOS user