Roentgenium has two electrons on the outer shell.
One electron
7
Roentgenium has 111 electrons.
3 valence electrons.
8 valence electrons
3 valence electrons
Aluminium has 3 valence electrons.
Roentgenium has 111 electrons.
6 valence electrons
how many valence electrons does family 1 have
3 valence electrons.
8 valence electrons
8 valence electrons
3 valence electrons
5 valence electrons.
3 valence electrons
Beryllium has two valence electrons.
10 valence electrons
Cl has 7 valence electrons.