3s will have the lowest energy among the options given
4s has lowest energy.accrding to Affbou principle
the lowest energy level to allow f orbitals is the fourth energy level
The next highest energy electron orbital after 3p is the 4s orbital, after which comes the 3d and then 4p orbitals.
Notice on the periodic table that 4s comes before the 3d. That is the first place where energy overlap.
There are one 3s orbital, three 3p orbitals, and five 3d sublevels.
The range of the levels is between 0 to n-1. 3 minus 1 equals to 2, so we have 0, 1, 2 as sub levels. They are the same number of sub-levels.
3d
3 answer for apex
the lowest energy level to allow f orbitals is the fourth energy level
The next highest energy electron orbital after 3p is the 4s orbital, after which comes the 3d and then 4p orbitals.
There are one 3s orbital, three 3p orbitals, and five 3d sublevels.
Notice on the periodic table that 4s comes before the 3d. That is the first place where energy overlap.
Because 4s is a lower energy level and 3d is higher. In fact, s levels should, strictly, be written first before d levels when writing electron configurations.
3s: max 2 el'n 3p: max. 6 el'n 3d: max. 10 electrons
There are one 3s orbital, three 3p orbitals, and five 3d sublevels.
The range of the levels is between 0 to n-1. 3 minus 1 equals to 2, so we have 0, 1, 2 as sub levels. They are the same number of sub-levels.
The 4s orbital falls in a slightly lower energy level than the 3d orbital when it is empty so it will fill with electrons first, but when it is full of electrons it rises to be above the 3d one so that it will lose electrons first as well.
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