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an atom has complete k and l shells .is this an atom of metal ,nonmetal or noble gas?justify

The atom will be that of a noble gas, because, if the K and L shells are filled, it means that ( 2 + 8 = 10 ) have been completely filled. That is, it is in its octet.

Hence, it is an atom of a noble gas.

Hope this helps.....

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The atom would be a noble gas. This is because there is no space for the atom to accept and it cannot donate as it is stable. Hence the Atom would be a noble gas.

If the name of the element is asked, then:

We know no of electrons: K shell + L shell

= 2+8

=10

Atomic No (Z)= no of electronsin a stable atom

Hence Z is 10 and element with Z=10 is Neon

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Hyy
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It will be noble gas because it has fill it's octet . ( K +L ) ( 2 + 8 ) will be equal to 10 Thanks
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It is noble gas
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