If it is an isoelectronic series, select True; if not, select False.

a) F⁻, Cl⁻, Br⁻, I⁻
b) Br⁻, Kr, Rb⁺, Sr²⁺
c) Al³⁺, Mg²⁺, Na⁺, Si⁴⁺
d) Cu, Ag, Au
e) S²⁻, Cl⁻, K⁺, Ca²⁺
f) N³⁺, N, N⁵⁺
g) Ne, Ar, Kr, Xe