What does the aufbau principle state?
Understand the Problem
The question is asking about the aufbau principle, which is a fundamental concept in chemistry that describes the order in which electrons fill atomic orbitals. It helps in understanding the electronic configuration of atoms.
Answer
Electrons fill the lowest available energy orbitals first in the ground state.
The final answer is: The Aufbau principle states that in the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy first before occupying higher energy levels.
Answer for screen readers
The final answer is: The Aufbau principle states that in the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy first before occupying higher energy levels.
More Information
The Aufbau principle, also known as the building-up principle, is fundamental in determining the electron configuration of elements.
Tips
Students often confuse the order of orbital filling; remember that 4s fills before 3d due to its lower energy in the Aufbau diagram.
Sources
- The web page with info on - Example Source - chem.libretexts.org
- Aufbau Principle - Detailed Explanation, Diagram, Exceptions - byjus.com
- Aufbau principle - Wikipedia - en.wikipedia.org
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