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SCIENCE NLN PRACTICE QUESTIONS AND ANSWERS NEW UPDATE 2022
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SCIENCE NLN PRACTICE QUESTIONS AND ANSWERS NEW UPDATE 2022 To be isotopes, two atoms of the same element must have a different number of (A) neutrons. (B) protons. (C) electrons. (D) quarks.Correct Answer- (A) neutrons. Depending on its environment, a substance that can act as either an aci...
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