Question

which of the following compounds in the main group is an alkaline earth meta
a) sodium
b) xenon
c) calcium
d) silicon

Explanation:

Alkaline earth metals are in Group 2 of the periodic table. Sodium (A) is an alkali metal (Group 1). Xenon (B) is a noble gas (Group 18). Silicon (D) is a metalloid (Group 14). Calcium (C) is in Group 2, so it is an alkaline earth metal.

Answer:

C) Calcium