Question

A covalent bond is a chemical bond in which atoms share an isotope. a nucleus. molecules. electrons.

Answer 1

The answer is electrons. 

A covalent bond is a type of chemical bond where atoms share electrons.  Covalent bonds are also referred to as molecular bonds because they form molecules when bonded.

This type of bond occurs between non-metals. An example of a compound or a molecule that is formed through covalent bonding is water. It is a combination of two hydrogen atoms bonded with an oxygen atom. H₂O 

Answer 2

Answer:

The answer is Elecetrons.

Explanation:

A covalent bond is a sort of substance bond where particles share electrons.  Covalent bonds are likewise alluded to as atomic bonds since they frame particles when reinforced.  This kind of bond happens between non-metals. A case of a compound or a particle that is framed through covalent holding is water. It is a blend of two hydrogen iotas reinforced with an oxygen molecule. H₂O.