Question

Express your answer in complete form in the order of orbital filling as a string without blank space between orbitals. For example, 1s22s should be entered as 1s²²s².

Answer 1

The order of orbital filling in the atomic structure follows the Aufbau principle. Electrons fill the lowest energy level orbitals first in a specific order. For example, in oxygen, the 1s, 2s, and 2p orbitals are filled in that order.

Step-by-step explanation:

Orbital Filling in the Atomic Structure

When filling the orbitals of an atom, we follow a specific order known as the Aufbau principle. This principle states that electrons occupy the lowest energy level orbitals first in a specific order.

The order of filling for sublevels is as follows:

1. 1s
2. 2s
3. 2p
4. 3s
5. 3p
6. 4s
7. 3d
8. 4p
9. 5s
10. 4d
11. 5p
12. 6s
13. 4f
14. 5d
15. 6p

For example, the electron configuration of oxygen is 1s²2s²2p⁴. This means that the 1s orbital is filled with 2 electrons, followed by the 2s orbital with another 2 electrons, and finally the 2p orbital with 4 electrons.