A covalent bond is a bond that involves the sharing of electrons. An ionic bond is a bond between a metal and a non-metal. It is a bond formed by the attraction between two oppositely charged ions.
What is electronegativity?
Describes the tendency of an atom to attract electrons, thus the tendency to form negative ions.
List the electronegativity values for H, Na, Cl, and O.
H=2.1 Na=.9 Cl=3 O=3.5
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