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Why does the 4s orbital fills before the 3d orbital?
the 4s orbital is lower in energy than the 3d orbitals
Why does 4s orbital start filling while 3p orbital is empty?
The electrons fill in the lowest energy orbital that is available. Electrons in the 4s orbital have a lower energy level than electrons in the 3p orbital, so the 4s orbitals are filled with electrons first.
What atom is represented in the following orbital diagram 1s2s2p?
The next highest energy electron orbital after 3p is the 4s orbital, after which comes the 3d and then 4p orbitals.
What is the atomic orbital after 4s?
3d
Why 4S orbital is filled before 3d orbital during writing electronic configuration Explain with the help of n l rule?
4s-orbital will be filled prior to 3d-orbital.ORBITALnl(n+l)4s404+0 = 43d323+2 = 5Since 4s-orbital has least value of (n+l), therefore ,it will occupy electrons before3d-orbital.The order of increasing of energy of orbitals can be calc. from(n+l) rule or 'Bohr bury rule' According to this rule, the value of n+l is the energy of the orbital and such on orbital will be filled up first. e.g. 4s orbital having lower value of(n+l) has lower energy than 3d orbital and hence 4s orbital is filled up first. For 4s orbital, n+l=4+0=4 For 3d orbital, n+l=3+2=5,therefore 4s orbital will be filled first.
Which orbital should fill first 4s or 3d orbital?
4s will fill first because it is at a lower energy level than the 3d level.
Why are the valence electrons of calcium in the 4s orbital not the 3d orbital?
The 3d sublevel is not filled until after the 4s sublevel, because the 3d sublevel has more energy than the 4s sublevel, and less energy than the 4p sublevel.
Why is the electron configuration for copper 1s22s22p63s23p63d104s1 instead of 1s22s22p63s23p63d94s2?
Because a full 4s orbital is more stable than a full 3d and half full 4s. So, the last 3d electron jumps up to the 4s orbital.
Why do electrons enter the 4s orbital before entering the 3d orbital?
because its energy level is lower
Is that 4s or 3d orbital to which an excited electron from 3p would first go?
4s, as it is lower in energy.. s then d
How many electrons can 4s orbital hold?
4
Why do you believe that the valence electrons of calcium and potassium reside in the 4s orbital rather than in the 3d orbital?
The 3d sublevel is not filled until after the 4s sublevel, because the 3d sublevel has more energy than the 4s sublevel, and less energy than the 4p sublevel.
