why the element argon is unstable?
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==>Argon is a noble gas
==>It is stable
==>Its atomic no: is 18
==>Thus , it has 18 protons and 18 electrons
==>Its electronic configuration is 2 , 8 , 8
==>Its valency or combining capacity is 0.
==>It does not need to combine with other elements to gain ,lose or share electrons
==>Its all shells are filled
==>Hence it is a noble gas and is stable
==>It is stable
==>Its atomic no: is 18
==>Thus , it has 18 protons and 18 electrons
==>Its electronic configuration is 2 , 8 , 8
==>Its valency or combining capacity is 0.
==>It does not need to combine with other elements to gain ,lose or share electrons
==>Its all shells are filled
==>Hence it is a noble gas and is stable
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