Orbital Notation Worksheet
A Grade 9 science worksheet focusing on orbital notation, electron configurations, and related principles in chemistry.
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Orbital Notation Worksheet
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Read each question carefully and provide your answers in the space provided. Show all work for calculations.
1. According to the Aufbau principle, electrons fill the lowest energy first.
2. Hund's rule states that every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same .
3. The Pauli exclusion principle states that no two electrons in the same atom can have identical sets of quantum numbers.
4. Draw the orbital notation for a Nitrogen atom (N).
5. Explain the difference between an orbital and a subshell.
6. Which of the following elements has the electron configuration 1s²2s²2p⁶3s²3p¹?
Boron
Aluminum
Phosphorus
Silicon
7. How many electrons can a single p orbital hold?
1
2
3
6
8. An s orbital can hold a maximum of 6 electrons.
True
False
9. The principal quantum number (n) describes the shape of an orbital.
True
False
10. Write the full electron configuration and orbital notation for a Chlorine atom (Cl).
Electron Configuration:
Orbital Notation: