Atoms that share electrons in a chemical bond have covalent bonds. An oxygen molecule (O2) is a good example of a molecule with a covalent bond. Ionic bonds occur when electrons are donated from one atom to another.
What? do you mean what does gravity cause?
True... atoms contain what are called electrons and protons. the protons being possitively charged and the elctrons being negatively charged
Answer:
the tendency of some atoms in molecules to attract electrons more than their accompanying atom.
Explanation: