Question

State the electronic configuration of the following elements and state whether they are metals, non-metals, or inert gas

${}_{20}{}^{}\mathrm{F}$

Answer 1

Electronic configuration — The distribution of an electron in a given shell, orbital, or sub orbitals is known as electronic configuration

• The arrangement of electrons in energy levels in the shell of the atom.
• electronic configuration is also known as electronic structure.
• It also helps to predict whether the element is metal, non-metal, or metalloid.
• if their outermost shell has 1,2,3 electron are considered metal except for H, He, B.
• Thus, the electronic configuration of the given element is

Thus${}_{20}{}^{}\mathrm{F}$, — 2,8,8,2, the element is calcium and it is a metal.