list the sequnce in which the following orbitals fill up: 1s , 2s , 3s, 4s , 5s, 6s, 7s, 2p, 3p , 4p, 5p , 6p , 7p , 3d, 4d, 5d, 6d, 4f, 5f
If one has 3.85 Moles of sodium how many grams of sodium do they have
To determine the sequence in which the given orbitals fill up, we need to follow the Aufbau principle, which states that electrons fill orbitals in order of increasing energy. Here is the sequence in which the orbitals fill up:
1s, 2s, 3s, 4s, 5s, 6s, 7s
These are the s-orbitals, which have spherical shapes.
2p, 3p, 4p, 5p, 6p, 7p
These are the p-orbitals, which have dumbbell shapes. The p-orbitals start filling after the s-orbitals.
3d, 4d, 5d, 6d
These are the d-orbitals, which have complex shapes. The d-orbitals start filling after the p-orbitals. Notice that the 3d orbitals come after the 4s orbital, even though the number 3 is smaller than 4. This is a result of the energy levels of the orbitals.
4f, 5f
These are the f-orbitals, which have even more complex shapes. The f-orbitals come after the d-orbitals.
So, the complete sequence is:
1s, 2s, 3s, 4s, 5s, 6s, 7s, 2p, 3p, 4p, 5p, 6p, 7p, 3d, 4d, 5d, 6d, 4f, 5f