Radium has seven electron shells; the valence of radium is 2+.
Radium has one valence electron.
Radium has two valence electrons.
There are 2 valence electrons in Radium. There are 2 valence electrons in Radium.
Radium is a group 2 element. All group 2 elements have 2 valence electrons. Thus, radium has 2 valence electrons.
Radium has 2 valence electrons, as it belongs to Group 2 of the periodic table.
Two electrons in the outer shell of radium.
Two valence electrons
3
Yes they have eight electrons in their valence shells. This is why they are not reactive. All elements have valence shells.
Radium has 86 electrons.
Beryllium has one valence shell containing two electrons.
Radon has 8 valence electrons (electrons in it's outer shell) so does Ne, Ar, Kr, Xe. Helium is in the same line, but only has 2 valence electrons. Hope that helps! Sarah G.