Question

symbols of element 1to30 with their valency

Answer 1

H 1

He 2+

Li. 3+

Be. 2+

B. 3-

C. 4-

N. 3-

O. 2-

F. 1-

Ne. no valency

Na. 1+

Mg. 2+

Al. 3+

Si. 4-

P. 3-

S. 2-

Cl. 1-

Ar. no valency

K. 1+

Ca. 2+