If calcium has two valence electrons and sulfur has six, how many calcium atoms are needed to form an ionic bond with sulfur?

Question

Chemistry

Bridger Baxter

6 July, 11:08

If calcium has two valence electrons and sulfur has six, how many calcium atoms are needed to form an ionic bond with sulfur?

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Answers (2)

Know the Answer?

Dangelo Blackwell · Answer 1

Dangelo Blackwell 6 July, 12:23

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3 calcium atoms would be needed.

Jazmyn Newton · Answer 2

1 atom of calcium is needed to form an ionic bond with sulfur.

If calcium has two valence electrons and it needs to denote these two electrons to achieve a noble gas electronic configuration, and sulfur has six electrons, it needs two extra electrons to achieve a noble gas electronic configuration. Thus a ionic bond is formed between sulfur and calcium, in which 1 atom of calcium donate its 2 electrons to 1 atom of sulfur and formation of bond takes place.