Question

5 Q. Write the atomic number of the elements
And electronic configuration, valency
He. Be. Ca.Zn. Mg.AI,K, Ca, S.Ne​

Answer 1

Answer:

Atomic no. of He is 2 and its electronic configuration is 2

Atomic no. of Be is 4 and its electronic configuration is 2,2

Atomic no. of Ca 20 and its electronic configuration is 2,8,8,2

Atomic no. of Zn is 30 and its electronic configuration is 2,8,8,8,4

Atomic no. of Mg is 12 and its electronic configuration is 2,8,2

Atomic no. of Al is 13 and its electronic configuration is 2,8,3

Atomic no.of K is 19 and its electronic configuration is 2,8,8,1

Atomic no. of S is 16 and its electronic configuration is 2,8,6

Atomic no. of Ne is 10 and its electronic configuration is 2,8

Answer 2

Answer:

atomic number

He - 2

Be - 4

Ca - 20

Zn - 30

Mg - 12

K - 19

Ca - 20

S- 16

Ne - 10

Explanation:

I only known the atomic numbers of this much