Question

please give the correct solution

Answer 1

check it out

i doesnt not perfect answ.!! :)

Answer 2

Atomic number of element A = 20

Therefore number of electrons = 20

Thus, electronic configuration of element A is electronic configuration of element A is K=2  L=8  M=8 N=2

ELEMENT IS CALCUIM

Atomic number of element B = 17

Therefore number of electrons = 17

Thus, electronic configuration of element B is electronic configuration of element B   K=2  L=8  M=7

ELEMENT IS CHLORINE

The compound formed when P reacts with Q is CaCl_{2}. The chemical reaction is as follows.

      Ca + Cl_{2} ------>  CaCl_{2}

MOLECULAR WEIGHT IS 110u(approx.)

the compound is neutral