Which electronic configuration(s) listed below is(are) correct for the elements provided?
I. Nitrogen 1s²2s²2p³
II. Tin [Kr]5s²4d¹⁰5p²
III. Bromine 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁷

Question

Which electronic configuration(s) listed below is(are) correct for the elements provided? I. Nitrogen 1s²2s²2p³ II. Tin [Kr]5s²4d¹⁰5p² III. Bromine 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁷

Quizplus · Accepted Answer

The correct electronic configurations are:
I. Nitrogen 1s2 2s2 2p3
II. Tin [Kr] 5s2 4d10 5p2
III. Bromine [Ar] 3d10 4s2 4p5

Option B is the only one that has both correct electronic configurations for nitrogen and tin. Option A is incorrect as it only has the incorrect electronic configuration for nitrogen. Option C is also incorrect as it only has the incorrect configuration for tin. Option D is incorrect as it only has the correct configuration for bromine, but not for nitrogen or tin. Option E is incorrect as it has the correct electronic configuration for bromine, but not for nitrogen or tin.

Which Electronic Configuration(s) Listed Below Is(are) Correct for the Elements