What is the difference between the nitrite ion and the nitrate ion?

See below  

Step-by-step explanation:

Nitrite ion is NO₂⁻; nitrate ion is NO₃⁻.

The nitrate ion has one more oxygen atom than nitrite ion.

An -ate ion always has one more oxygen atom than an -ite ion.

You can see the structures of the two ions below.

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i