Magnesium has twelve electrons. It is in the 3rd period.
Magnesium.
alkaline earth metals such as Be, Mg, Ca, Sr, Ba, Ra
Alkaline earth metals are group 2 elements and have 2 valence electrons.
The alkaline earth metals are those in the same group as calcium; they have two valence electrons.
The alkaline earth metals are those in the same group as calcium; they have two valence electrons.
Alkaline earth metals are in the second group. Be is the first metal of them.
Alkaline Earth metals :)
The alkaline earth group has two valence electrons.
Radium is a member of the alkaline earth metals group (group 2).
Because they have two valence electrons.
Alkaline Earth metals :)
alkaline earth metals
Alkaline earth metals