Which of the following elements will form a cation with a +2 charge?
A)Si
B)Sr
C)Ga
D)Cs
E)S

Name: Which of the following elements will form a cation with a +2 charge? A)Si B)Sr C)Ga D)Cs E)S
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Question

Quizplus · Accepted Answer

Sr is in group 2 of the periodic table, which means it has 2 valence electrons. To form a cation with a +2 charge, it will lose these 2 valence electrons, leaving it with a +2 charge. The other elements listed either have too many or too few valence electrons to form a cation with a +2 charge.

Which of the Following Elements Will Form a Cation with a +2