Consider the ions S²⁻, Cl⁻, K⁺

CHEMISTRY · Single correct · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

Consider the ions S²⁻, Cl⁻, K⁺, and Ca²⁺, which are isoelectronic. Which ion has the largest ionic radius? (a)

\text{Cl}^{-}

(b)

\text{K}^{+}

(c)

\text{S}^{2-}

(d)

\text{Ca}^{2+}