Oxidation -
- Element gains oxygen
- Oxidation number increases
- Ag → Ag^+ + e^- [Electron wala thing is on the RHS]
- Element loses electrons
Reduction -
- Oxidation number decreases
- Element gains electron
- O2 + 4e^- → 2O^2- [BALANCE when dealing with gasses, increase both the sides AND ELECTRONS TOO]
OILRIG - Oxidation Is Loss, Reduction Is Gain
Adding 2 half equations -
- Make the number of electrons in both the half equations the same
- Cancel them out and then combine both the LHS’ and the RHS’
Relative atomic mass (RAM) is a measure of the average mass of an atom of an element, relative to 1/12 of the mass of a carbon-12 atom. RAM is calculated using the weighted average of the masses of the naturally occurring isotopes of an element. RAM is also known as atomic weight.

