Question

explain the formation of oxygen molecule

Answer 1

oxygen has 6 electrons in its outermost shell in order to have a stable configuration, it acquires two electrons by sharing two of its own with another oxygen atoms which gives a stable configuration to both the atoms. these two shared electronic pairs from a double covalent bond between the two oxygen atoms their their forming a molecule of oxygen

Answer 2

Formation of oxygen molecule, O2: Oxygen atom has six electrons in its outermost shell, two short of forming a complete octet. Thus each oxygen atom in O2 shares 2 electrons with the other oxygen atom and attains stable configuration.