Quantum Numbers

Front

What is a quantum number?

Back

A quantum number is a number that describes the properties of atomic orbitals and the electrons in those orbitals.

Front

What does the principal quantum number (n) indicate?

Back

The principal quantum number (n) indicates the energy level of an electron in an atom.

Front

What does the azimuthal quantum number (l) represent?

Back

The azimuthal quantum number (l) represents the shape of the orbital.

Front

What are the possible values of the azimuthal quantum number (l) for an s orbital?

Back

For an s orbital, the azimuthal quantum number (l) is 0.

Front

What are the possible values of the azimuthal quantum number (l) for a p orbital?

Back

For a p orbital, the azimuthal quantum number (l) is 1.

Front

What are the possible values of the azimuthal quantum number (l) for a d orbital?

Back

For a d orbital, the azimuthal quantum number (l) is 2.

Front

What does the magnetic quantum number (m_l) indicate?

Back

The magnetic quantum number (m_l) indicates the orientation of the orbital in space.

Front

What are the possible values of m_l for a p orbital?

Back

For a p orbital, the possible values of m_l are -1, 0, and +1.

Front

What is the spin quantum number (m_s)?

Back

The spin quantum number (m_s) indicates the spin of the electron, with possible values of +1/2 or -1/2.

Front

How many orbitals are in the s sublevel?

Back

There is 1 orbital in the s sublevel.