What subatomic particle determines an
element's chemical reactivity?...
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Heat is the total potential energy of a substance that can be transferred. true false
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Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope
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