Question

how many atoms of oxygen (o) are in the compound: *

k2o

1 atom
2 atoms
3 atoms

Explanation:

Step1: Analyze the chemical formula

The formula is \(K_2O\). In a chemical formula, the sub - script next to an element symbol represents the number of atoms of that element.
For oxygen (\(O\)) in \(K_2O\), there is no sub - script written explicitly. When no sub - script is present, it is assumed to be 1.

So, there is 1 atom of oxygen in the compound \(K_2O\).

Answer:

1 atom