Physics, 23.08.2019 22:10, oof40

What can one say for sure about element #99, einsteinium ( a) there's no such element! b) it is an alkali metal. c) it is radioactive. d) it has 253 neutrons. e) it increases one's 1.q. slightly when swallowed.

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What can one say for sure about element #99, einsteinium ( a) there's no such element! b) it is an...