Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074



Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

What are the electron configurations of Cu(g), Cu+(g), and Cu2+(g)? Determine the number of unpaired electrons in each species.

Interpretation Introduction


The electronic configuration of copper,Cu+, Cu2+ and the number of unpaired electrons in each species has to be determined.

Concept introduction:

The electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals by following certain rules like first the electrons starts filling from lower to the higher energy levels, pairing of electrons does not occur until all the orbitals in degenerate levels are singly filled and no two electrons in orbital can have same set of quantum numbers.


The electronic configuration of copper is [Ar] 3d104s1. It has ten electrons in the d-orbital and it is completely filled, only one electron in the s-orbital therefore it contains one unpaired electron.

The electronic configuration of Cu+ is [Ar] 3d10

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