Question 570 of 991 in Principles of Chemistry

Other examples of ionic bonding

1 mark · Easy

Which ion is formed when a nitrogen atom gains three electrons? Give the symbol, including charge.

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N3–

Also accept: 3–; Nitride ion

Common mistakes: N3+; N–

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Marking points

B1 · 1 mark · Gives correct symbol and charge: N3–

Worked solution

When nitrogen gains 3 electrons, it forms an N3– ion.

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