Practice: E-Con, Orbital Notation, Noble Gas Notation

Front

What is the electron configuration for Zinc?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

Front

What is the Aufbau Principle?

Back

Electrons occupy orbitals of lowest energy first.

Front

What are quantum numbers?

Back

A set of numbers that describe the unique quantum state of an electron in an atom.

Front

What is the maximum number of electrons in the 3rd energy level?

Back

18 electrons.

Front

Which electron configuration corresponds to Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

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 an atom with 10 electrons?

Back

1s² 2s² 2p⁶.

Front

What is a possible pair of quantum numbers for an electron in a 4p orbital?

Back

n=4, l=1, m_l=-1, 0, or +1.

Front

Which of the following is NOT a valid orbital: 2p, 2d, 4p, 4f?

Back

2d is NOT a valid orbital.