In the neutral atom of a chemical element number of electrons= number of protons=atomic number.
There are 3 valence electrons in an atom of aluminium.
Aluminium has three valence electrons.
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There are 3 valence electrons in Al (Aluminum) as it is located in group 13 of the periodic table.
For example aluminium.
Aluminium has three valence electrons and phosphorous has five, hence the latter has more.
Aluminium has a 3 valence electrons, 3s2, 3p1
To determine the number of valence electrons in an electron configuration, look at the outermost energy level of the atom. The number of electrons in this level is the number of valence electrons.
Aluminium (Al) has three valence electrons.
The valence of aluminium is 3+.
Valence electrons determine the reactivity of the element.
The valence is determined experimentally.