How many inner electrons are in the element lithium?
1 Answer
Nov 30, 2015
Lithium has two inner electrons in the 1s sublevel.
Explanation:
The atomic number of lithium (Li) is 3. Therefore its atoms contain 3 protons. A neutral atom has equal numbers of protons and electrons, so a neutral Li atom also has 3 electrons.
The electron configuration of Li is
