In the neutral atom of a chemical element number of electrons= number of protons=atomic number.
3 valence electrons.
Aluminium has 3 valence electrons.
Aluminium has three valence electrons.
Aluminium has a 3 valence electrons, 3s2, 3p1
6
For example aluminium.
Aluminium has three valence electrons and phosphorous has five, hence the latter has more.
Aluminium has 13 electrons; valence electrons are 3.
Valence electrons determine the reactivity of the element.
Valence Electrons
The valence is determined experimentally.
The maximum capacity of electron accommodation in aluminium is 18 electrons( M shell) on contraty it has only 3 valence electrons whereas boron has maximum capacity of 8 electrons(L shell) and it has 3 valence electrons so electron population of Aluminium is less than that of boron.