Question

what information is shown in an atoms electron dot diagram? the number of shells an atom has the number of electrons in each shell of an atom the number of valence electrons an atom has the number of valence shells of an atom

Explanation:

An electron - dot diagram (also known as a Lewis dot diagram) is a way to represent an atom. It focuses on the valence electrons. Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding. The diagram does not show the number of shells (except in a very indirect way through the number of valence electrons for some simple cases), nor does it show the number of electrons in each shell (only the outermost shell's electrons - valence electrons), and it does not show the number of valence shells (since for most common atoms, there is one valence shell when considering chemical bonding in the simple sense).

Answer:

the number of valence electrons an atom has