Chemistry, 10.12.2020 18:40 BeautyxQueen

The average atomic mass of fictitious element Z is 261.4 amu. Z has only 2 isotopes. One of its isotopes has an atomic mass of 260.0 amu the other 264.0 amu. Choose the abundance for the isotopes 55%

44%

35%

99%

25%

1%

11%

65%

Answers: 3

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The average atomic mass of fictitious element Z is 261.4 amu. Z has only 2 isotopes. One of its isot...