Electron Configuration Flashcards
What is electron configuration?
The distribution of electrons in an atom’s orbitals.
True or False: The maximum number of electrons in a shell is given by the formula 2n².
True
Fill in the blank: The first shell can hold a maximum of ___ electrons.
2
What are the four types of orbitals?
s, p, d, and f
Which principle states that electrons occupy the lowest energy orbitals first?
Aufbau principle
What is the maximum number of electrons that can be held in a p subshell?
6
True or False: Electrons in the same orbital must have opposite spins.
True
What is Hund’s rule?
Electrons will fill degenerate orbitals singly before pairing up.
What is the electron configuration of carbon?
1s² 2s² 2p²
Which element has the electron configuration [Ne] 3s² 3p⁵?
Chlorine
Fill in the blank: The d-block elements are also known as ___ elements.
transition
What is the electron configuration for the element with atomic number 26?
1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²
True or False: The f subshell can hold a maximum of 14 electrons.
True
What does the notation [Ar] represent in electron configuration?
The electron configuration of Argon, which is a shorthand notation.
What is the general order of filling orbitals based on energy levels?
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.
