What is model of lithium atom?

The model of the lithium atom describes the arrangement of subatomic particles within the atom. The lithium atom consists of a nucleus containing three protons and usually four neutrons, and three electrons in orbit around the nucleus. The electrons occupy three energy levels or shells, with two electrons in the first shell, and one electron each in the second and third shells. The electrons are arranged in a bohr model with the innermost level (n=1) containing 2 electrons and the second (n=2) and outermost levels (n=3) containing 1 electron each. The lithium atom is a reactive metal that can easily lose its outermost electron to form a cation with a single positive charge. This makes lithium an important element used in batteries, ceramics, and other applications.