windexnova windexnova
  • 17-09-2020
  • Chemistry
contestada

Which alkali metal has an atomic mass of 238 pm?

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cobynevers
cobynevers cobynevers
  • 17-09-2020
samarium?
i hope this helped
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squiddnugget2017 squiddnugget2017
  • 17-09-2020
I believe samarium does.
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