Question

Write the electronic configuration for $\mathrm{Cr}\left(24\right)\mathrm{and}\mathrm{Cu}\left(29\right)$.

Answer 1

Electronic configuration:

• The electronic configuration is the arrangement of electrons in different atomic orbitals.
• The electrons will be filled in the different respective orbitals.
• The $\mathrm{s}-$orbitals can have two electrons and $\mathrm{p}-$orbitals can hold six electrons and $\mathrm{d}-$orbitals can hold ten electrons and $\mathrm{f}-$orbitals can cold fourteen electrons with it.

Chromium and Copper:

• The atomic number of chromium is $24$.
• The electronic configuration of chromium is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^{6}4{\mathrm{s}}^{1}3{\mathrm{d}}^5$.
• The atomic number of copper is $29$.
• The electronic configuration of copper is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^{6}4{\mathrm{s}}^{1}3{\mathrm{d}}^{10}$.