3.1.1 - Fundamental Particles (copy)

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5 Terms

1
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Proton

  • Relative charge : +1

  • Relative Mass : 1

2
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Neutron

  • Relative charge : 0

  • Relative Mass : 1

3
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Electron

Relative charge : -1

Relative Mass : 1/1840 = 0

4
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How to find how many e- held in a shell?

  • Use equation :

    2n² → n = no. of shells

    e.g no of e- in shell 2 = 2(2²) = 8

5
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Evolution of atomic structure

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