why is valency of argon is 0
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5
This is a noble gases, which means that it have valency 0.
The noble gases, or inert gases, have a full outer shell of electrons. This means that they have no spontaneous incentive to enter into compounds with other elements or each other. There are extremely few known compounds that include a noble gas.
If a noble gas were to lend an electron, or to borrow one, it would not be "comfortable" in a quantum mechanical sense.
Hope it helps....
The noble gases, or inert gases, have a full outer shell of electrons. This means that they have no spontaneous incentive to enter into compounds with other elements or each other. There are extremely few known compounds that include a noble gas.
If a noble gas were to lend an electron, or to borrow one, it would not be "comfortable" in a quantum mechanical sense.
Hope it helps....
Answered by
2
Because it has 18 electrons.2 of those get filled in first shell and 8 in second shell and the other 8 left in third shell. So all shells are completely filled. Therefore it has 0 valence electrons and 0 valency.
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