An ion contains 10 electrons and 7 neutrons

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

Problem

An ion

\text{M}^{3-}

contains 10 electrons and 7 neutrons. What is the atomic number and mass number of the element M? (A) 7,14 (B) 10,17 (C) 7,10 (D) 13, 7

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