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History, 03.12.2019 06:56 jcultr4s3nse



which formula below would be the correct match between nickel (ii) (ni) and bromine (br)? hint: nickel has 2 valence electrons because of the roman numeral next to its symbol. any time you see a roman numeral you need to remember that is the number of valence electrons.


nibr2


nibr


ni2br


ni2br3

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