Describe covalent and ionic bonding?
Covalent bonds are a form of chemical bonding; it shares a pair of electrons between atoms, and other covalent bonds. There’s a stable balance of attractive and repulsive forces between atoms when they share electrons.
Ionic bonds are also a form of chemical bonding that involves a metal and a nonmetal ion through electrostatic attraction. Ionic bonds are formed by attraction between two oppositely charged ions.
What is electronegativity?
“Electronegativity is a chemical property that describes the tendency of an atom or a functional group to attract electrons towards itself and thus the tendency to form negative ions. An atom’s electronegativity is affected by both its atomic number and the distance that its valence electrons reside from the charged nucleus.” http://en.wikipedia.org/wiki/Electronegativity
List the electronegativity values for H, Na, Cl, and O.
H has a electronegativity value of 2.20.
Na has a electronegativity value of 0.93.
Cl has a electronegativity value of 3.16.
O has a electronegativity value of 3.44.
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