A divalent cation has 10 electrons and 12 neutrons. The atomic number and mass number of the elements are
A)12, 24
B)10, 12
C)11, 25
D)8, 12

Name: A divalent cation has 10 electrons and 12 neutrons. The atomic number and mass number of the elements are A)12, 24 B)10, 12 C)11, 25 D)8, 12
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Question

Quizplus · Accepted Answer

A divalent cation with 10 electrons must have an atomic number of 12, as it has lost 2 electrons to become positively charged. The mass number is the sum of protons (12) and neutrons (12), giving a mass number of 24.

A Divalent Cation Has 10 Electrons and 12 Neutrons