Chemistry - Electron Configuration

Front

What is an orbital diagram?

Back

An orbital diagram is a visual representation of the arrangement of electrons in an atom, using arrows to indicate the spin of electrons in orbitals.

Front

What does the notation [Ne]3s²3p¹ represent?

Back

This is the noble gas electron configuration for aluminum, indicating that aluminum has the same electron configuration as neon plus two electrons in the 3s subshell and one in the 3p subshell.

Front

What is the electron configuration for magnesium?

Back

The electron configuration for magnesium is 1s²2s²2p⁶3s².

Front

What is the electron configuration for zinc?

Back

The electron configuration for zinc is 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰.

Front

How many electrons can the first energy level hold?

Back

The first energy level can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons in the second energy level?

Back

The second energy level can hold a maximum of 8 electrons.

Front

Define electron configuration.

Back

Electron configuration is the distribution of electrons in an atom's orbitals, described by a series of numbers and letters that indicate the energy levels and sublevels.

Front

What is the significance of noble gas configurations?

Back

Noble gas configurations simplify the electron configuration notation by using the nearest noble gas to represent the core electrons, making it easier to write and understand.

Front

What is the Aufbau principle?

Back

The Aufbau principle states that electrons occupy the lowest energy orbitals first before filling higher energy orbitals.

Front

What is Hund's rule?

Back

Hund's rule states that electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up.