what is the correct name for k2o

potassium oxide as far as I know

I would have answered that k2o is unknown. I agree that K2O is potassium oxide.

The correct name for K2O is potassium oxide.

To determine the correct name for a compound like K2O, we need to identify the cation (positively charged ion) and the anion (negatively charged ion) it contains. In this case, the cation is potassium (K+) and the anion is oxygen (O2-).

Using the naming rules for binary compounds, we combine the names of the elements, but modify the ending of the anion's name slightly. The name of the cation (potassium) remains the same, while the name of the anion (oxygen) changes to "-ide." Therefore, we get "potassium oxide" as the correct name for K2O.