Structure of atom

​Structure of Atom

Topics to be covered:

​By Aditya Taxak

Atomic Mass

Ion

Periodic Table​

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Introduction

Dalton Atomic Theory

Sub Atomic particle

Rutherford and Thomson model

Atomic Number​

Atom is the smallest unit of matter. There are many theories about Atom. Scientists like John Dalton, J.J Thomson, E. Rutherford and Neil Bohr give theories and model of atom.

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​Introduction:

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​Dalton give the fact that atom is indivisible and can't be divided further.

Atom is Nuetral. ​

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Dalton's Atomic Theory:

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J.J Thomson did an experiment and discovered cathodic rays. These rays are further known as Electron. He provide a model of atom as shown in the figure.

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​Thomson Model of atom:

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Rutherford did an experiment on atomic theory but his observation was different from Thomson. He discovered that an atom has a nucleus and most of space in atom was empty.

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​Rutherford model of atom:

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​By the observation of scientists atom can be further classified into three types: protion, electron and nuetrons.

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Sub Atomic particles:

Quiz Time:

Multiple Choice

Atom is classified into _______ types.

• 2

• 4

• 3

• 5

Multiple Choice

Positive charged part of atom are

• cation

• ion

• proton

• electron