(a(i))[1]
Give the letters of every particle that is an atom.
(a(ii))[1]
Give the letters of every particle that is an ion with charge $2-$.
(a(iii))[1]
Give the letters of every particle that is a cation.
(b)[1]
State the atomic number of A.
(c)[1]
Determine the number of nucleons in D.
(d)[1]
State the electronic configuration of D.
(e)[1]
State the group number of F.
(f)[1]
State the period number of B.