Question

What is the valence shell,valence electron and group number of the magnesium?

Answer 1

Magnesium is element 12 and belongs to Group 2 of the Periodic Table. An element in Group 2 hastwo valence electrons. Also, the electron configuration of Mg is 1s² 2s²2p⁶ 3s² or [Ne]3s². Since the 3s² electrons are the outermost electrons, magnesium has twovalence electrons.

Answer 2

$\huge\underline\orange{\sf Valence shell :-}$

$Q: 1- What \: is \: Valence \: shell? \\ </p><p>Ans:- The \: outermost \: shell \: of \: an \: atom \: \\ is \: known \: as \: the \: Valence \: shell.$

$\huge\underline\red{\sf Valence Electrons :-}$

$Q: 2- What \: are \: Valence \: Electrons? \\ </p><p>Ans:- The \: electrons \: present \: \: in \: the \: \\ Valence \: shell \: of \: an \: atom \: are \: known \: \\ as \: Valence \: Electrons.$

$Q: 3- What \: is \: group \: number \: of \: Magnesium? \\ </p><p>Ans:- Magnesium \: is \: group \: 2 \: element. \: \\ Group \: 2 \: elements \: are \: called \: alkaline \: earth \: metals. \: \\ </p><p>Compounds \: of \: magnesium \: are \: widely \: used \: in \: \\ construction \: and \: medicine, \: and \: magnesium \: is \: \\ one \: of \: the \: elements \: essential \: to \: all \: cellular \: life.$