which of the Na positive and He has completely filled with K and L shells? give reason
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Heya mate,
here is your answer....
Na (sodium) have a completely filled k and l shells...since it's atomic number is 11...Therefore, 2 shells will be filled in the k shells....rest 8 in the l shell and then a electron will be left leading to be in the m shell....
since, atomic number of helium is 2 i.e the two electrons will fill in the k shell...
hope it helps ☺
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here is your answer....
Na (sodium) have a completely filled k and l shells...since it's atomic number is 11...Therefore, 2 shells will be filled in the k shells....rest 8 in the l shell and then a electron will be left leading to be in the m shell....
since, atomic number of helium is 2 i.e the two electrons will fill in the k shell...
hope it helps ☺
please mark me as brainliest✌
Answered by
0
An atom of Na has a total of 11 electrons. Its electronic configuration is 2, 8, 1. But, Na + ion has one electron less than Na atom ie, it has 10 electrons.
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