Question

Write the electronic configuration for calcium.

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.

Calcium:

• The atomic number of calcium is $20$.
• The electronic configuration of calcium is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^{6}4{\mathrm{s}}^2$.