the mass number of fluorine (F) is 19
C. 19
Answer:
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Answer:
Metal oxides are compounds composed of metal ions and oxide ions. Nonmetal oxides are compounds composed of nonmetal atoms and oxygen atoms. The main difference between metal oxides and non metal oxides is that metal oxides are basic compounds whereas nonmetal oxides are acidic compounds.
Explanation:
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tC
Mg + 2H(NO)3 ⇒ Mg(NO3)2 + H2
