To determine the number of sodium atoms in one formula unit of sodium chromate ([tex]\( Na_2CrO_4 \)[/tex]), we need to read and interpret the chemical formula.
1. The formula for sodium chromate is [tex]\( Na_2CrO_4 \)[/tex].
2. The subscript [tex]\( 2 \)[/tex] placed next to the sodium symbol ([tex]\( Na \)[/tex]) indicates the number of sodium atoms present in one formula unit of sodium chromate.
3. This means there are 2 sodium atoms.
Therefore, the number of sodium atoms in one formula unit of sodium chromate is:
C. 2 atoms
