Based on its position in the periodic table, which single atom would you predict to form a compound with two nitrate polyatomic ions?
A)boron
B)aluminum
C)lithium
D)calcium
E)carbon

Question

Quizplus · Accepted Answer

Looking at the periodic table, we see that calcium (Ca) is a group 2 element, which means it has two valence electrons available for bonding. Nitrate polyatomic ions have a charge of -1 each, so a compound with two nitrate ions would have a total charge of -2. Therefore, the calcium ion (Ca2+) would be able to bond with two nitrate ions (NO3-) to achieve a neutral compound with the formula Ca(NO3)2.

Based on Its Position in the Periodic Table, Which Single