Chemistry, asked by rumaisawaleed12, 3 months ago

5 The ion Q2+ has three complete shells of electrons. What is Q?
A calcium
B magnesium
C oxygen
D sulfur

Answers

Answered by delzinfaridani

0

Answer:

calcium

Explanation:

Answered by parvinder91

0

Answer:

Sulphur

Explanation:

shell (n)=3= period no.

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