select the correct answer.\nin the periodic table of elements, what do all of the elements in group 2 have…

select the correct answer.\nin the periodic table of elements, what do all of the elements in group 2 have in common?\na. an atom of each element can hold up to eight electrons in its outer energy level.\nb. an atom of each element can hold up to six electrons in its outer energy level.\nc. each element is an alkaline earth metal.\nd. each element is a halogen.\ne. each element is dull, brittle, and breaks easily.

select the correct answer.\nin the periodic table of elements, what do all of the elements in group 2 have in common?\na. an atom of each element can hold up to eight electrons in its outer energy level.\nb. an atom of each element can hold up to six electrons in its outer energy level.\nc. each element is an alkaline earth metal.\nd. each element is a halogen.\ne. each element is dull, brittle, and breaks easily.

Answer

Brief Explanations:

Elements in group 2 of the periodic table are known as alkaline - earth metals. They have 2 valence electrons. Option A is about the general octet rule not specific to group 2. Option B and C are incorrect as group 2 elements have 2 valence electrons. Halogens are in group 17, so option D is wrong. Option E describes properties of non - metals, not group 2 elements.

Answer:

D. Each element is an alkaline earth metal.