ii. Which pair of atomic numbers represent elements in the same
group:
a) 6, 12 b) 4, 16 c) 11, 19 d) 8,17
Answers
Answered by
6
Explanation:
answer..is 11, 19
11= 282
19=2881
valency is 1.
so your answer is c. 11, 19.
hope it helps you
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Answered by
3
Answer:
C) 11, 19
11 = 2 8 1
19 = 2 8 8 1
∴valency is one
beacause elements in the same groups have same valency
Explanation:
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