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Cations ___ electrons and they are almost always a ___
Lose, metal
Anions ___ electrons and are almost always a ____
Gain, nonmetal
Atoms want a full valence shell by nature, so which groups will want to do this?
Groups 1-3, and 15-17
How do you write ionic formulas? For example, tell me how would you write Ca²+ + NO3^-
Cations first, anions second, and then swapped the charges. This would be Ca(NO3)2
Ionic solids are ___ conductors of electricity. However, they can conduct when ____.
poor; dissolved
Which atoms are expected to form negative ions and which ones are positive?: Br, Ca, Na, N
what are their charges?
Br and N —> negative ion
Ca and Na —> positive ion
Br-, N³-, Ca²+, Na+