Question

What valencies will be shown by the elements A, B, C, D and E having atomic numbers 2, 4, 8, 10, and 13 respectively
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Answer 1

A = 0

B = 2+

C = 2-

D = 0

E = 3+

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Answer 2

Explanation:

A. 0

B. 2

C. 2

D. 0

E. 3

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