Question

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Answer 1

Explanation:

1. proton ---> heavier than electron

2.neutral ---> neutron

3.valence electron ---> outer shell

4.bohr bury scheme ---> 2n^2

5.inert gas ---> completely filled shell

6.valency zero ---> inert gas

7.accepts electrons ---> Valence shell 5,6,7

8.donates electrons ---> Valence shell 1,2,3

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