Question

the valency of the element with electronic configuration _____________ is 2
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Answer 1

Explanation:

1. Hydrogen (H)

Valency = 1

Electronic Configuration : 1

2. Helium (He)

Valency = 0

Electronic Configuration : 2

3. Lithium(Le)

Valency = 1

Electronic Configuration : 2 , 1

4. Beryllium(Be)

Valency = 2

Electronic Configuration : 2 , 2

5. Boron(B)

Valency = 3

Electronic Configuration : 2 , 3

6. Carbon(C)

Valency = 4

Electronic Configuration : 2 , 4

7. Nitrogen(N)

Valency = 3

Answer 2

the valency of the element with electronic configuration _____________ is 2

answer is zero