Electrons in Atoms- Electron Configuration

It states that the exact position and momentum of an electron cannot both be known at the same time.

It states that electrons orbit the nucleus in fixed paths.

It states that electrons have a definite energy but no definite position.

It states that electrons are always found in pairs.

The ground state is the highest energy arrangement of electrons.

Electrons fill orbitals starting from the highest energy level.

The ground state is the most stable arrangement of electrons.

Electrons always pair up before occupying empty orbitals.

2s

2p

3s

3p

They are of equal energy.

They have different energies.

They are always empty.

They are always filled first.

Orbitals related to energy sublevels can overlap with sublevels of a different principal level.

All orbitals have the same energy regardless of sublevel.

Orbitals never overlap between principal levels.

Only s orbitals can overlap.

Two electrons with the same spin

Two electrons with opposite spins

One electron with spin up and one with spin down

An unoccupied orbital

Single electrons with the same spin occupy each equal-energy orbital first.

Electrons pair up in an orbital only after each orbital has one electron.

Electrons in the same orbital must have the same spin.

Additional electrons with opposite spin can occupy the same orbital after each orbital has one electron.