Question

solve this fast plzz​

Answer 1

Answer:

a)10 is neon

20 is calcium

7 is nitrogen

14 is silicon

b)going in order of elements:

0 or VIII

II

V

IV

c)going in order of elements:

2

4

2

3

d)going in order of elements:

2,8

2,8,8,2

2,5

2,8,4

e)going in order of elements:

0

2

3

4

hope u understand:)

Answer 2

Explanation:

10 -neon

group number:-

( noble gas)0

period:-2

Electronic configuration:-2,8

valency:-0

becoz it is noble gas

::;;;:

20:-calcium

group number:-2A

period:-4

Electronic Configuration:-2,8,8,2

valency:-2

:::;;;;

7-nitrogen

group number:-5A

period:-7

Electronic configuration:-2, 5

Valency:-3(8-5)

::;;:::;

14-silicon

group number:-4A

period:-14

Electronic Configuration:-2, 8,4

Valency:-4(8-4)