The likely word is animosity (ill feeling, hostility).Another possible word is atomicity, used to mean valence of an element's atoms.
There are 3 valence electrons in an atom of aluminium.
Electrons in the outermost shell are valence electrons!
Zero valence
The valence of beryllium is two.
It has 4 valence electrons and a valence electron potential of 95.2
Valence electrons
Xenon has 8 valence electrons.
No, aluminium typically has a valence of +3.
Alkali metals have 1 valence electron.
Gold typically has a valence of +1 or +3 in its compounds.
Indium has 3 valence electrons.