Covalent bonds are when two atoms share electrons. Ionic bonding is when one atom has less electronegativity and another atom has more electronegativity and steals from the atom that has less electronegativity.
What is electronegativity?
Electronegativity measures the ability of one atom to steal electrons from another atom to sometimes make one positive and one negative. The higher the electronegativity the number of an atom the more it attracts electrons towards it.
List the electronegativity values for H, Na, Cl, and O.
H-2-2
Na-0.93
Cl-3-16
O-3.44
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