Showing posts with label reverse cross over rule. Show all posts
Showing posts with label reverse cross over rule. Show all posts
Tuesday, January 27, 2009
3.04 - Polyatomic Ions - 14:06
KEY TERMS: 2 or more non-metals, Nick the Camel ate a Clam for Supper in Phoenix, "ate" ending
Underlined letter represents the atom
# of consonants = # of oxygens
# of vowels = # of negative charges associated with polyatomic
Ending is "ate" - except for ammonium ion and hydroxide ion
5 Step Cross over rule:
- Remember that polyatomic has brackets and the charge is written outside of the brackets
- remove brackets when the number outside of the brackets is a "1"javascript:void(0)
3.03 - Transition Metals -14:40
KEY TERMS: transition metals, Classical system, Stock system, Latin names, Roman numerals, cross over rule, reverse cross over rule
"ic" ending = higher charge
"ous"ending = lower charge
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