Review: Arrangement of Electrons in Atoms

Front

What are quantum numbers?

Back

Sets of numbers that specify properties of electrons.

Front

What does Hund’s rule state?

Back

All orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron.

Front

Which element is a noble gas?

Back

Neon.

Front

What is the principal quantum number?

Back

It indicates the main energy level of an electron in an atom.

Front

What does the angular momentum quantum number represent?

Back

It defines the shape of the orbital.

Front

What is the magnetic quantum number?

Back

It describes the orientation of the orbital around the nucleus.

Front

What does the spin quantum number indicate?

Back

It specifies the direction of the electron's spin.

Front

What is the Aufbau principle?

Back

Electrons occupy the lowest energy orbitals first.

Front

What is the Pauli exclusion principle?

Back

No two electrons in an atom can have the same set of four quantum numbers.

Front

What is an orbital?

Back

A region in an atom where there is a high probability of finding an electron.