Helium and Neon Are Unreactive Gases. What, If Anything, Do Their Atoms Have in Common? - Science
Helium and neon are unreactive gases. What, if anything, do their atoms have in common?
The atoms of helium and neon have their valence shells completely filled with electrons. The number of valence electrons is 8. So, they do not show any reactivity.
Concept: The Modern Periodic Table
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