A certain cation has the electron configuration

CHEMISTRY · Single correct · A Level · Chemistry · Atomic structure · Atomic structure

Problem

A certain

+2

cation has the electron configuration

[\text{Ar}]\,3d^{10}

. Which of the following ions matches this configuration? (a)

\text{Cu}^{2+}

(b)

\text{Ga}^{2+}

(c)

\text{Zn}^{2+}

(d)

\text{Ni}^{2+}

Related theory

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