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^{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.

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.

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