how many chromium atoms are present in one formula unit of sodium chromate? na₂cro₄ 4 atoms 1 atom 7 atoms 2…

how many chromium atoms are present in one formula unit of sodium chromate? na₂cro₄ 4 atoms 1 atom 7 atoms 2 atoms

how many chromium atoms are present in one formula unit of sodium chromate? na₂cro₄ 4 atoms 1 atom 7 atoms 2 atoms

Answer

Explanation:

Step1: Analyze formula unit

The formula of sodium chromate is Na₂CrO₄. The sub - script of an element in a chemical formula indicates the number of atoms of that element in one formula unit.

Step2: Identify Cr sub - script

For chromium (Cr) in Na₂CrO₄, the sub - script is 1 (when no sub - script is written, it is assumed to be 1).

Answer:

1 atom