Lowest is Hydrogen highest is <span>Beryllium
-HOPE THIS HELPED </span>
I don’t know about this ♀️
Answer:
The elements in Group 2 (beryllium, magnesium, calcium, strontium, barium, and radium) are called the alkaline earth metals (see Figure below). These elements have two valence electrons, both of which reside in the outermost s sublevel. The general electron configuration of all alkaline earth metals is ns
