Question

how many valence electrons does sodium have? 1 2

Explanation:

Sodium (\(Na\)) has an atomic number of \(11\). Its electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{1}\). Valence electrons are the electrons in the outermost shell. Here, the outermost shell is the \(3s\) shell, which has \(1\) electron.

Answer:

1