Hydrogen atoms share electrons in a covalent bond.
In water molecules there are 2 atoms of hydrogen of and 1 atom of oxygen present. each hydrogen atom shares 1 electron with the oxygen atom. So the total number of electrons shared with oxygen are 2,total no. of electrons shared by hydrogen is 2 and the total no. of electrons shared by each hydrogen atom is 1.
Actually chlorine and hydrogen will not share electrons; the chlorine atom steals the electron from the hydrogen atom, creating two separate oppositely charged ions.
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Hydrogen atoms have one valence electron which is also the only electron they have.
The covalent bonds that oxygen shares with hydrogen gives it a full outer shell of 8 electrons.
Eight. Oxygen has 6 electrons and shares two more with the hydrogen atoms in covalent bonds
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