Orbital Notation Worksheet
Grade 11 Chemistry worksheet on orbital notation, covering Aufbau principle, Hund's rule, and Pauli exclusion principle.
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Orbital Notation Practice
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Read each question carefully and provide your answers in the space provided. Remember to use arrows to represent electrons and follow the rules of orbital notation.
1. The principle states that electrons occupy the lowest energy orbitals first.
2. rule states that every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied.
3. The exclusion principle states that no two electrons in the same atom can have the same four quantum numbers.
1. Draw the orbital notation for a Nitrogen atom (N).
2. Draw the orbital notation for an Oxygen atom (O).
3. Draw the orbital notation for a Fluorine atom (F).
1. Which of the following elements has a half-filled p-orbital in its ground state electron configuration?
Boron
Carbon
Nitrogen
Oxygen
2. How many unpaired electrons are present in a Sulfur (S) atom in its ground state?
0
1
2
3
1. An electron in a 2p orbital has higher energy than an electron in a 2s orbital.
True
False
2. According to Hund's rule, electrons will pair up in an orbital before all orbitals of that subshell are singly occupied.
True
False
1. Explain why the 4s orbital fills before the 3d orbital, even though 3 is a lower principal energy level than 4.
2. Write the full orbital notation for a neutral atom of Scandium (Sc).