Question

how many valence electrons does lithium (li) have available for bonding?
○ 1
○ 2
○ 3
○ 4

Explanation:

Lithium (Li) has an atomic number of 3. Its electron configuration is $1s^2 2s^1$. Valence electrons are the electrons in the outermost shell. The outermost shell (n = 2) of Li has 1 electron, so lithium has 1 valence electron available for bonding.

Answer:

A. 1