Electron Arrangements Worksheet
Explore electron configurations, valence electrons, and orbital diagrams for Grade 10 Chemistry students.
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Electron Arrangements Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What is the maximum number of electrons that can occupy the first electron shell?
2
8
18
32
2. Which principle states that electrons will occupy the lowest energy orbitals available?
Hund's Rule
Pauli Exclusion Principle
Aufbau Principle
Octet Rule
3. The outermost electrons of an atom are called electrons.
4. An orbital can hold a maximum of electrons.
5. The letter 'p' in a subshell notation represents a dumbbell-shaped orbital that can hold a maximum of electrons.
6. Draw a Bohr model diagram for a Sodium atom (Na). (Atomic number = 11)

7. Write the full electron configuration for Oxygen (O). (Atomic number = 8)
8. Explain the difference between an electron shell and an electron subshell.
9. All electrons in the same subshell have the same energy level.
True
False
10. According to Hund's Rule, orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron.
True
False