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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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which formula below would be the correct match between nickel (ii) (ni) and bromine (br)? hint: ni...
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