The ionic compound with formula Al O is composed of Al and O ions

CHEMISTRY · Single correct · AP · Chemistry · Compound Structure and Properties · Compound Structure and Properties

Problem

The ionic compound with formula Al

_2

_3

is composed of Al

^{3+}

and O

^{2−}

ions. Which set lists the correct Lewis symbols for the ions present in one formula unit of the compound? (a) 2

\text{Al}^{2+}

ions, each showing one dot, and 3

\text{O}^{2-}

ions, each showing four pairs of dots around O with a 2− superscript (b) 2

\text{Al}^{3+}

ions, each showing no dots, and 3

\text{O}^{2-}

ions, each showing four pairs of dots around O with a 2− superscript (c) 2

\text{Al}^{3+}

ions, each showing three dots, and 3

\text{O}^{2-}

ions, each showing four pairs of dots around O with a 2− superscript (d) 2

\text{Al}^{3+}

ions, each showing no dots, and 3

\text{O}^{2-}

ions, each showing three pairs of dots around O with a 2− superscript