No, a hydrogen atom cannot have two electrons without forming a molecule with another atom. The atomic structure of hydrogen consists of a single proton in the nucleus and one electron orbiting around it. This configuration is known as neutral hydrogen.
To have two electrons in its orbit, hydrogen would need to gain an additional electron. However, when hydrogen gains an extra electron, it forms a hydride ion (H-). This ion is not a neutral hydrogen atom anymore but rather an ion with a negative charge. It occurs when hydrogen accepts an electron from another atom or molecule.
In a molecular context, hydrogen can share electrons with another atom to form a covalent bond, resulting in the formation of a molecule. For example, when hydrogen shares electrons with oxygen, it forms a water molecule (H2O) where two hydrogen atoms are bonded to one oxygen atom.
So, in summary, for a hydrogen atom to have two electrons without forming a molecule, it would need to gain an extra electron, making it a hydride ion rather than a neutral hydrogen atom.