Getting Connected
Ionic Compounds
Metal elements combine with the nonmetal element chlorine to form compoundsIonic compound - an ionic compound is a compound composed of positive & negative ions, formed when metal and nonmetal atoms combine
Rule for naming - (+) (-)
Metal Nonmetal - ide
Li+1S2- Lithium Sulf
Na+12O2- Sodium Ox
Rule of zero charge - in ionic compounds, positive charges in cations and negative in anions sum to 0.
Practice Problems
3) Lithium nitride has the formula Li3N.
a. +1 but the three ions add up to +3
b. -3
c. Since the three lithium ions combine have a positive charge of three, when you add them to the nitrogen's negative charge of three it equals 0. (+3) + (-3) =0
d. each lithium atom has 0 valence electrons and the nitrogen atoms has 8 so it is full.
5) a. KBr - (+1) + (-1) =0 b. CaO - (+2) + (-2) =0 c. Li2O - 2(+1) + (-2)
d. CaCl2 - (+2) + 2(-1) =0 e. AlCl3 - (+3) + 3(-1) =0
You do such a good job explaining! I know where I'm coming if I miss school ;)
ReplyDeleteDude so true! It's just lovely Darci!
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