2022 CHEM FINAL REVIEW e Configurations

Front

What is the correct way to represent electrons in an orbital diagram?

Back

In an orbital diagram, each orbital can hold a maximum of two electrons, which must have opposite spins. Electrons should be placed in separate orbitals before pairing up.

Front

What is the electron configuration for a Zinc atom?

Back

The electron configuration for Zinc (Zn) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

Define valence electrons.

Back

Valence electrons are the electrons in the outermost energy level of an atom that are involved in forming bonds.

Front

Which Noble Gas is used for shorthand electron configuration of Plutonium (Pu)?

Back

The Noble Gas used for shorthand configuration of Plutonium is Radon (Rn).

Front

What is the electron configuration for an oxygen atom?

Back

The electron configuration for an oxygen atom (O) is 1s² 2s² 2p⁴.

Front

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

Back

A single orbital can hold a maximum of 2 electrons.

Front

What is the significance of the Pauli Exclusion Principle in electron configurations?

Back

The Pauli Exclusion Principle states that no two electrons in an atom can have the same set of four quantum numbers, meaning that two electrons in the same orbital must have opposite spins.

Front

How do you determine the number of valence electrons in an element?

Back

The number of valence electrons can be determined by looking at the group number of the element in the periodic table.

Front

What is the electron configuration for a neutral atom of Carbon?

Back

The electron configuration for a neutral atom of Carbon (C) is 1s² 2s² 2p².

Front

What is the difference between an atom's ground state and excited state?

Back

An atom's ground state is its lowest energy configuration, while an excited state occurs when one or more electrons have absorbed energy and moved to a higher energy level.