Numford
Oxidation number

O in OF₂

O is +2 in oxygen difluoride.

Oxidation number

Type a formula or an ion: K2Cr2O7, Cr2O7 2-, MnO4-, NH4+ or K4[Fe(CN)6]. Put a known ion in brackets when two elements are unknown. Pick an element to solve for it.

O+2

  1. Fluorine is −1 in all its compounds.
  2. With fluorine, oxygen is positive, so the sum decides it.
  3. The oxidation numbers add up to the charge, 0: 2(−1) + x = 0.
  4. x = +2.
Rule steps

How to find it

  1. Fluorine is −1 in all its compounds.
  2. With fluorine, oxygen is positive, so the sum decides it.
  3. The oxidation numbers add up to the charge, 0: 2(−1) + x = 0.
  4. x = +2.
Every atom

All the oxidation numbers in OF₂

  • F −12 atoms, fluorine
  • O +21 atom, oxygen with fluorine
Questions

O in OF₂: quick answers

What is the oxidation number of O in OF₂?

O in OF₂ (oxygen difluoride) is +2.

How do you find the oxidation number of O in OF₂?

Fluorine is −1 in all its compounds. With fluorine, oxygen is positive, so the sum decides it. The oxidation numbers add up to the charge, 0: 2(−1) + x = 0. x = +2.

What are the oxidation numbers of the other atoms in OF₂?

F −1. Together with O at +2 they add up to the charge of the compound, 0.

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