* Nitrite: NO₂⁻

* Nitrate: NO₃⁻

Let me break down why:

* Nitrogen: Both nitrite and nitrate contain nitrogen (N).

* Oxygen: The difference lies in the number of oxygen atoms:

* Nitrite: Has two oxygen atoms (O₂).

* Nitrate: Has three oxygen atoms (O₃).

* Charge: Both nitrite and nitrate ions carry a negative charge (1-).

Key Differences:

Nitrite and nitrate are important in various chemical processes and play roles in environmental and biological systems. They can be distinguished by their different chemical properties and reactions.