In the periodic table of elements, what do all of the elements in group 2 have in common? A. An atom of each element can hold up to eight electrons in its outer energy level.
B. An atom of each element can hold up to six electrons in its outer energy level.
C. Each element is an alkaline earth metal.
D. Each element is a halogen.
E. Each element is dull, brittle, and breaks easily.
I need help to be able to get into a hard class and this is the last question. PLS HELP. Who ever answers I will name brainliest if correct