Question

An ion M3+ has 2 electrons in K shell and 8 electrons in L shell. 1+1+1+2

a) Identify the element M.

b) Write its atomic number and valency.

c) Write the formula of the compound formed by M with

chlorine.

d) Which has stable electronic configuration M or M3+?

Justify​

Answer 1

Answer:

a) Neon

b) 10 valency 0

These are the answer of a And b