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Chemistry, 18.10.2020 16:01 lanman65

Which of these represents lead with an atomic mass of 204? a) 284Pb
b) 123Pb
c) 122Zr
d) 248Zr

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Which of these represents lead with an atomic mass of 204? a) 284Pb
b) 123Pb
c) 122Zr

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