What is the total number of electrons in the valence shell of an atom of aluminum in the ground state?
1 Answer
Jun 6, 2017
3
Explanation:
Aluminium atomic number 13 has 13 total electrons the electronic configuration is
The first two electrons fill the first shell. Another eight electrons fill the second shell. This is a total of ten electrons in filled shells. That leaves 3 electrons in the third shell. This is the valance shell since it is not filled. So the