Chemistry, 23.08.2021 14:00 kinggonzales5082
Symbols (not real symbols) of some atoms are given. 817P,1840Q168P,2040R a) Find the atomic number and mass number of these elements. b) Which among these are isotopic pairs?
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Symbols (not real symbols) of some atoms are given. 817P,1840Q168P,2040R a) Find the atomic number a...
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