true/false. a) an element has atomic number 15, its valency is -2. b) the products are always written on the right hand side in a chemical reaction. C) iron has only one valency
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false is right answer for these questions
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a)2,8,5 so it would be -3 cause it needs to gai 3 electrons
b)True Products are always written on the right side
c)iron has has 8 eight valence electrons
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