ions
atoms
molecules
electrons
Answer is Wrong!
Answer is Right!
The correct answer is C. molecules.
Oxygen is a diatomic molecule, meaning that it is made up of two oxygen atoms. The chemical formula for oxygen is O2. This means that two oxygen atoms are bonded together to form a molecule.
An ion is an atom or molecule that has a positive or negative charge. This is because it has gained or lost electrons.
An electron is a subatomic particle that has a negative charge. It is found in the outermost shell of an atom.
Therefore, the correct answer is C. molecules.