Question

How many electrons are present in the outermost shell of $\mathrm{Lithium}$ atom?

Answer 1

• Chemical symbol of $\mathrm{Lithium}$ = $\mathrm{Li}$
• Atomic number of $\mathrm{Lithium}$ = $3$
• Electronic configuration = $$\begin{gathered} \mathrm{K}\mathrm{L} \\ 21 \end{gathered}$$
• Number of electrons in outermost shell = $1$

Therefore the number of electrons present in the outermost shell of $\mathrm{Lithium}\left(\mathrm{Li}\right)$ is$1$.