how can you use the electron configuration to determine the number of valence electrons

Valence electrons can be found by determining the electronic configurations of elements. Thereafter the number of electrons in the outermost shell gives the total number of valence electrons in that element.

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adioabiola adioabiola · Answer 2 · 2021-10-07T12:57:38+02:00

Here, we are required to explain how the electronic configuration can be used to determine the number of Valence electrons.

The algebraic sum of electrons in the highest energy level in an electron configuration is the number of Valence electrons of the element.

Valence electrons simply refers to electrons present in the outermost shell of an element.

Valence electrons simply refers to electrons present in the outermost shell of an element.The electron configuration is a representation of the arrangement of electrons in the atomic orbitals of an element.

The number of electrons present in the outermost shell as evident from the electron configuration can be used to determine the Valence electron in the elements.

Fir instance: the electron configuration of potassium; 1s² 2s² 2p⁶ 3s² 3p⁵

The algebraic sum of electrons in the energy level 3 therefore is the number of Valence electrons.

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