electronic structure of atoms Flashcards
What is an electronic orbital?
An electronic orbital is a region in an atom where there is a high probability of finding electrons.
How many types of orbitals are there?
There are four types of orbitals: s, p, d, and f.
True or False: An s orbital can hold a maximum of 2 electrons.
True.
What shape is an s orbital?
An s orbital has a spherical shape.
What is the shape of a p orbital?
A p orbital has a dumbbell shape.
Fill in the blank: The maximum number of electrons that can occupy a d orbital is _____ .
2.
How are orbitals filled according to the Aufbau principle?
Orbitals are filled starting from the lowest energy level to the highest.
What is the relationship between energy levels and distance from the nucleus?
Higher energy levels are generally located further from the nucleus.
What does the term ‘degenerate orbitals’ refer to?
Degenerate orbitals are orbitals that have the same energy level.
Multiple Choice: Which of the following orbitals has the highest energy? A) 3s B) 3p C) 4s D) 3d
D) 3d.
What is the significance of the electron configuration of an atom?
The electron configuration determines the chemical properties and reactivity of the atom.
Fill in the blank: The maximum number of electrons in any orbital type is _____ .
2.
True or False: Orbitals can overlap when forming chemical bonds.
True.
what is the aufbau principle
The Aufbau principle is a rule in chemistry that describes how electrons fill orbitals in an atom. It states:
Electrons fill the lowest-energy orbitals first.
what is bohrs theory
Bohr’s theory says:
1. Electrons move in fixed energy levels around the nucleus.
2. They can jump between levels by gaining or losing energy.
3. When they lose energy, they emit light.
This explains why atoms produce specific colors of light.
