Atoms of the group 15 elements tend to react to form ions. a. 3+ b. 5- c. 5+ d. 3-

D. 3-

Explanation:
Elements of group 15 are:
nitrogen with electronic configuration : 1s2 2s2 2p3
phosphorus with electronic configuration : [Ne] 3s2 3p3
arsenic with electronic configuration: [Ar] 3d10 4s2 4p3
antimony with electronic configuration: [Kr] 4d10 5s2 5p3
bismuth with electronic configuration: [Xe] 4f14 5d10 6s2 6p3

As we can note, all elements of group 15 have 5 electrons in their outermost energy levels.
To be stable, each of them needs to have 8 electrons in the outermost shell. This means that each needs to gain 3 more electrons.
Based on this, they will form negative ions having a charge of 3

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