Chemistry, asked by harsh867057, 4 months ago

30) Elements A, B and C have atomic number 13, 17 and respectively.
a) Write their electronic distribution
b) Determine their valency

Answers

Answered by karishmarahi

4

Explanation:

13

a) 2,8,3

b) 3

17

a) 2,8,7

b) 1

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