Question

The elements neon and argon are not reactive. Which hypothesis BEST explains this?

They are not stable atoms.


They are not readily available on Earth.


They tend to give up all of their valence electons easily.


They have the maximum possible number of electrons in their outermost shell.

Answer 1

They have the maximum possible number of electrons in their outermost shell.

Step-by-step explanation:

There are only a few elements that are less reactive than noble gases. The reason for this is that they are filled with electrons, which are referred to as valence electrons.

Essentially, the more electrons on the outermost shells, the less reactive.

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- profparis