교과서 질문
a. Which of the following is expected to be paramagnetic: Ne, Li2, Li2+, N2, N2+, N22−? b. For each of the substances in part (a) that is paramagnetic, determine the number of unpaired electrons it has.
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10. Periodic Properties of the Elements
Paramagnetism and Diamagnetism
Multiple Choice
Which of the following atoms is diamagnetic?
A
N
B
O
C
F
D
Ne
검증된 단계별 안내1
Recall that an atom is diamagnetic if all of its electrons are paired, meaning there are no unpaired electrons in its electron configuration.
Write the electron configuration for each atom: N (Nitrogen), O (Oxygen), F (Fluorine), and Ne (Neon).
Determine the number of electrons and fill the orbitals according to the Aufbau principle, Hund's rule, and the Pauli exclusion principle for each atom.
Check for unpaired electrons in each atom's electron configuration. If there are unpaired electrons, the atom is paramagnetic; if all electrons are paired, it is diamagnetic.
Identify that Neon (Ne), with a full outer shell (1s² 2s² 2p⁶), has all paired electrons and is therefore diamagnetic.
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