Electron configuration

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating the energy levels and sublevels occupied by electrons.

Front

What is the electron configuration for Aluminum (Al)?

Back

1s² 2s² 2p⁶ 3s² 3p¹

Front

How many electrons can the p sublevel hold?

Back

6

Front

Why is the electron added to the 4s orbital instead of the 3d orbital after the 3p orbital is filled?

Back

Due to orbital energy level.

Front

What atom has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰?

Back

Zinc (Zn)

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p²?

Back

Silicon (Si)

Front

What is the maximum number of electrons in the s sublevel?

Back

2

Front

What is the order of filling orbitals according to the Aufbau principle?

Back

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, etc.

Front

What is Hund's rule?

Back

Electrons will occupy degenerate orbitals singly before pairing up.

Front

What is the Pauli Exclusion Principle?

Back

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