how many atoms of nitrogen are in the chemical formula ni(no₃)₂?\n2\n1\n6\n3
how many atoms of nitrogen are in the chemical formula ni(no₃)₂?\n2\n1\n6\n3
Answer
Explanation:
Step1: Analyze the formula
In the formula $Ni(NO_3)_2$, the sub - script outside the parentheses applies to all atoms inside the parentheses.
Step2: Count nitrogen atoms
The number of nitrogen atoms in one $NO_3$ group is 1. Since there are 2 $NO_3$ groups (because of the sub - script 2 outside the parentheses), the total number of nitrogen atoms is $1\times2 = 2$.
Answer:
A. 2