Noble gases have eight electrons in their outer shell.
In order to make a compound, an element has to lose, gain or share electrons. Since Noble gases already have a full outer shell, they do not need to do this.
Therefore, they do not form compounds.
Hope this helped :)
In order to make a compound, an element has to lose, gain or share electrons. Since Noble gases already have a full outer shell, they do not need to do this.
Therefore, they do not form compounds.
Hope this helped :)
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Where did you "learn" that ?
First of all, there are 6 noble gas elements. Only two have no known compounds at room temperature and pressure. Although I do not know for certain, I am sure even Helium and Neon will form compounds under sufficient pressure.
They are typically unreactive (at STP) because their electron shells are complete and so there is little energy to be gained by the covalent sharing of electrons, or to put it another way; the covalent sharing of electrons does not lower the potential energy of the combined system by much.
First of all, there are 6 noble gas elements. Only two have no known compounds at room temperature and pressure. Although I do not know for certain, I am sure even Helium and Neon will form compounds under sufficient pressure.
They are typically unreactive (at STP) because their electron shells are complete and so there is little energy to be gained by the covalent sharing of electrons, or to put it another way; the covalent sharing of electrons does not lower the potential energy of the combined system by much.
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Their valence shell is full so they can not hold any more electrons.