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    • # 9 - Noble Gases

    Look at the last row on the right of the periodic table:

    These elements are called the noble gasses.

    What�s so special about them to get its own lesson? These atoms already have eight in their outer shell. Remember the octet rule? The octet rule sates that atoms achieve "lower energy" by having 8 electrons in their outer shell.

    This is a neon sign,
    full of Ne
    Now these elements (with the exception of helium(He)) already have 8 electrons in their outer shell by nature, so they don�t need to bond or do anything because they�re already at "lower energy"!

    The Goodyear Balloon
    is full of helium(He)
    That�s why these atoms barely bond at all. These atoms are usually non-reactive gasses.

    Helium (the exception noted above), has only two electrons in it�s outer shell, but it�s following the duet rule. That means it is at "lower energy" by having 2 electrons. It�s all it can fit!

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