9. An element Q with electronic configuration 2.8, 2 reacts with elements R. with electronic configuration 2, 8, 7 to form an ionic compound. The likely formula of this compound is:

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Peter Sun asked Dec 20, 2022

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9. An element Q with electronic configuration 2.8, 2 reacts with elements R. with electronic configuration 2, 8, 7 to form an ionic compound. The likely formula of this compound is:

Chemistry
high-school

Peter Sun asked Dec 20, 2022

by Peter Sun

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Answer:

QCl2

Step-by-step explanation:

Q should belong to group 2 so valency is 2

R should belong to group 17 so valency is 1

Zur answered Dec 24, 2022

by Zur

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