karimelanssary42
karimelanssary42 karimelanssary42
  • 19-11-2021
  • Chemistry
contestada

Due tomorrow: What element is in group 18, period 1

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Banana3ana
Banana3ana Banana3ana
  • 19-11-2021

Answer: helium

Explanation: it’s in the very last column (group) and the first row (period)

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