the.com/oxidation state
The charge an atom would have if every bond played favorites and electrons just left with the greedier partner.
means A bookkeeping number assigned to an atom in a compound, showing how many electrons it has effectively gained or lost compared to its neutral self.
from From 'oxidize,' which originally meant simply 'to combine with oxygen' — the element itself named after the Greek 'oxys' (sharp, acidic) because early chemists wrongly believed oxygen was essential to all acids. As chemistry matured, 'oxidation' stretched beyond oxygen to mean any loss of electrons, and 'state' was bolted on to describe the resulting electron-counting system — a case of a word outgrowing its original chemistry homework but keeping the name.
- not real charge
- a bookkeeping fiction, not measured electron count
- zero baseline
- pure elements always sit at zero
- fluorine rule
- fluorine is always negative one, no exceptions
- redox tracker
- tracks who gained or lost electrons in reactions