Chemistry - Electron Configuration

Front

What is the electron configuration of Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

Front

What does the Aufbau Principle state?

Back

Electrons occupy orbitals of lowest energy first.

Front

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

Back

Zinc (Zn)

Front

What is the electron configuration of an oxygen atom?

Back

1s² 2s² 2p⁴

Front

Which of the following is an element in the p subshell? (Ca, Ar, Re, Au)

Back

Argon (Ar)

Front

What is the maximum number of electrons that can occupy a single orbital?

Back

2 electrons, due to the Pauli Exclusion Principle.

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 the significance of Hund's Rule?

Back

Electrons will fill degenerate orbitals singly before pairing up.

Front

What is the electron configuration for a Neon (Ne) atom?

Back

1s² 2s² 2p⁶

Front

How many valence electrons does Chlorine (Cl) have?

Back

7 valence electrons.