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Author Question: What is the identity of element Q if the ion Q2+ contains 18 electrons? (Read 766 times)

Wadzanai

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Question 1

In which of the following sets do all species have the same number of protons?
◦ Br-, Kr, Rb2+
◦ C, N3-, O2-
◦ O, O2-, O2+
◦ Mg2+, Ca2+, Ba2+

Question 2

What is the identity of element Q if the ion Q2+ contains 18 electrons?
◦ Si
◦ Ca
◦ Ar
◦ S


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Marked as best answer by Wadzanai on Feb 15, 2020

Danny Ewald

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