Iaimazeshan2008
Iaimazeshan2008 Iaimazeshan2008
  • 11-04-2021
  • Chemistry
contestada

Element X is a solid at room temperature.
It needs one electron per atom to gain the electronic structure of a noble gas.
It is the least reactive element in its group.
What is the element X?

1.At
2.Cs
3. F
4. Li​

Respuesta :

Alessiawarner
Alessiawarner Alessiawarner
  • 11-04-2021

Answer:

Element X is Cs or cesium

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