Question

AX and CY are heights of parallelogram ABCD whose area is 11 and 1 by 4 CM square .what are the length of XA and CY?​

Answer 1

Answer:

Atomic number (Z)=15=P→[Ne]3s

2

3p

3

Phosphorus belongs to 15th group

number of valence electrons 3s

2

3p

3

=5

and valency =3 in ground state.

Hence, the correct option is C