Quantum Numbers
Which element has the configuration [Ne] 3s2 3p4?
Select the correct option:
Solution
Sulfur
- Core Translation: [Ne] represents the Neon core (10 electrons).
- Valence Electrons: 3s2 (2 e⁻) and 3p4 (4 e⁻).
- Total Atomic Number: Z=10+2+4=16.
- Identify Element: Atomic number 16 corresponds to Sulfur.
- Check Neighbors:
- Silicon (Z=14): [Ne]3s23p2
- Phosphorus (Z=15): [Ne]3s23p3
- Chlorine (Z=17): [Ne]3s23p5
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More quantum numbers Practice Questions
The maximum number of electrons that can have the quantum numbers n = 4 and mₛ = +½ is:
The maximum number of electrons that can have the quantum numbers n = 4 and mₛ = +½ is:
An electron in an atom has the quantum numbers n = 3, l = 2, mₗ = −1, mₛ = +½. The electron is prese...
An electron in an atom has the quantum numbers n = 3, l = 2, mₗ = −1, mₛ = +½. The electron is prese...
Approximate wavelength (nm) of the photon emitted when an electron in hydrogen atom drops from n=4 t...
Approximate wavelength (nm) of the photon emitted when an electron in hydrogen atom drops from n=4 t...
Which subshell is filled first according to the Aufbau principle?
Which subshell is filled first according to the Aufbau principle?
Which statement best explains Pauli's exclusion principle?
Which statement best explains Pauli's exclusion principle?
Number of unpaired electrons in Cu2+ (Z=29) is:
Number of unpaired electrons in Cu2+ (Z=29) is:
About This Question
- Subject
- chemistry
- Chapter
- atomic structure
- Topic
- quantum numbers
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Sulfur
- Core Translation: [Ne] represents the Neon core (10 electrons).
- Valence Electrons: 3s2 (2 e⁻) and 3p4 (4 e⁻).
- Total Atomic Number: Z=10+2+4=16.
- Identify Element: Atomic number 16 corresponds to Sulfur.
- Check Neighbors:
- Silicon (Z=14): [Ne]3s23p2
- Phosphorus (Z=15): [Ne]3s23p3
- Chlorine (Z=17): [Ne]3s23p5
This easy difficulty chemistry question is from the chapter atomic structure, covering the topic of quantum numbers. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse atomic structure questions on RankGuru.