How many of these atoms or ions have no unpaired electrons?
N, O, Na⁺, N³^-, Sc

Question

How many of these atoms or ions have no unpaired electrons? N, O, Na⁺, N³^-, Sc A) 1 B) 2 C) 3 D) 4 E) 5

Quizplus · Accepted Answer

A) N has three unpaired electrons in its ground state, making it a paramagnetic atom. B) O has two unpaired electrons in its ground state, making it a paramagnetic atom. C) Na⁺ has one unpaired electron in its ground state, making it a paramagnetic ion. D) N³^- has two unpaired electrons in its ground state, making it a paramagnetic ion. E) Sc has no unpaired electrons in its ground state, making it a diamagnetic atom. Therefore, the answer is B) 2, as only Sc and one of the ions do not have any unpaired electrons.

How Many of These Atoms or Ions Have No Unpaired