# Answer to Question #25494 in Inorganic Chemistry for Dottie Kee

Question #25494

how many orbitals in Na

Expert's answer

The atomic number of Na in the periodic table of elements is 11.The electron configuration for sodium is

1s

So, as we see, Na has 3 orbitals: the first orbital has 2 electrons, the seconds orbital has 8 electrons, and the last orbital has 1 electron. This could be told also from the number of period where Na is. Na is in 3 period, so it has 3 orbitals.

1s

^{2}2s^{2}2p^{6}3s^{1}So, as we see, Na has 3 orbitals: the first orbital has 2 electrons, the seconds orbital has 8 electrons, and the last orbital has 1 electron. This could be told also from the number of period where Na is. Na is in 3 period, so it has 3 orbitals.

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