Q:

Why are noble gases unreactive?

A:

Noble gases are unreactive because they have the full complement of electrons in their outermost energy levels. This full valence shell gives these atoms the most stable configuration they can achieve. Elements react with one another to gain a full complement of electrons like the noble gases.

All of the noble gases, except for helium, contain eight electrons in their outermost energy levels. Helium has two electrons in its outermost energy level, the maximum number that its single energy level can hold. Because these elements already contain the maximum number of electrons in their outermost energy levels, they do not need to find other atoms with which to form compounds. The noble gases were given this name because they do not interact much with other elements. Because of their inherent stability, noble gases can be found in their free forms in nature.


Is this answer helpful?

Similar Questions

  • Q:

    Why are noble gases not reactive?

    A:

    Noble gases are unreactive because their outer electron shells are full and therefore in their most stable state. Normally, elements react with one another because they have incomplete electron shells. They lose, gain or share electrons in order to gain a more stable electron configuration.

    Full Answer >
    Filed Under:
  • Q:

    Why don't noble gases form compounds?

    A:

    Noble gases do not form compounds because their full valence shells make them stable and chemically nonreactive. Atoms form compounds to achieve a full valence shell that leaves them more stable.

    Full Answer >
    Filed Under:
  • Q:

    Which of the noble gases is most often used in neon signs?

    A:

    Neon (Ne) is the most common noble gas used in neon signs. The term "neon signs" comes from its frequent use as a lighting agent.

    Full Answer >
    Filed Under:
  • Q:

    What are noble gases?

    A:

    The noble gases are a group of seven elements on the Periodic Table of Elements. Together they make up Group 18 on the table and include (in increasing atomic number) helium, neon, argon, krypton, xenon, radon and element 118, which has been temporarily named ununoctium. All noble gases display similar properties under standard conditions. They are colorless, tasteless, odorless and non-flammable.

    Full Answer >
    Filed Under:

Explore