cakebpope cakebpope
  • 14-02-2018
  • Physics
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Whitch family has full valence energy level

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CometZ CometZ
  • 14-02-2018
Group 0 - they are called the NOBLE GASES
(as they're very unreactive) because...

ALL of their atoms are full.
Example : Helium contains 2 electrons so it's outer shell is full
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