Chem: Atomic Structure and the periodic table.

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4 Terms

1
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State the charges and masses of the particles in an atom.

Electron= -1 , 1/1840

Proton= +1 , 1

Neutron= 0 , 1

2
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Define nucleon number

This is the number of neutrons and protons added together

3
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Define proton number

This is th enumber of electrons in the electronic shell

4
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Group =?

Period=?

Group= the number of electrons on the outer most shell

Period= the number of energy shells in an atom.