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Chemistry, 01.09.2019 21:30 kashaallen492
Why is the atomic mass of many elements not a whole number? a. elements are unstable. b. an element may have isotopes with different numbers of neutrons. c. the atomic mass includes all the electrons. d. isotopes are always expressed in decimals.
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Why is the atomic mass of many elements not a whole number? a. elements are unstable. b. an element...
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