Question

please tell me answer for this question ​

Answer 1

Answer:

Make a table by yourself!!

1) atomic number - 5

( mass number (A) = atomic number( Z) + number of neutrons(N) )

Mass number : 6+5=11

Valency : 3

2) Z : 8

A : 18

Valency:2

3) Z: 15

A : 31

Valency: 3

Please check the symbols of atomic number (Z), mass number (A) and neutrons (N) ,

Answer 2

Answer:

valency:3

valency:2

valency:3

hope it is helpful

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