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Science Clinic => Chemistry => Topic started by: Wadzanai on Feb 15, 2020

Title: What is the identity of element Q if the ion Q2+ contains 18 electrons?
Post by: Wadzanai on Feb 15, 2020

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
Title: What is the identity of element Q if the ion Q2+ contains 18 electrons?
Post by: Danny Ewald on Feb 15, 2020

Answer 1

O, O2-, O2+

Answer 2

Ca
Title: Re: What is the identity of element Q if the ion Q2+ contains 18 electrons?
Post by: Briana Bueno on Jun 17, 2020
Thank you so much!