Quantum Numbers and Gas Stoichiometry Quiz

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Questions and Answers

What is a quantum number?

A term used to describe the size of atomic orbitals

A concept related to the shapes of atomic orbitals

A value used to describe the energy levels available to atoms and molecules (correct)

A measurement of the speed of electrons in an atom

What can quantum numbers be associated with?

The colors of atomic orbitals

The taste of atomic orbitals

The temperature of atomic orbitals

Energies, sizes, shapes, and orientation in space of atomic orbitals (correct)

Which learning competency is related to the use of quantum numbers?

STEM_GC11ESIIa-b-57

STEM_GC11ESIIa-b-58

STEM_GC11CBIId-g-70

STEM_GC11ESIIa-b-54 (correct)

What type of problems can Gas Stoichiometry involve?

Limiting reagent problems, excess reagent problems, and stoichiometry problems Signup and view all the answers

What do atomic orbitals have associated with them?

Energies, sizes, shapes, and orientation in space Signup and view all the answers

Which learning objective involves drawing the Lewis structure of ions?

Learning Competency 4 Signup and view all the answers

What does the principal quantum number, n, describe?

The energy level Signup and view all the answers

What does the azimuthal or angular momentum quantum number, ℓ, describe?

The shape of the orbital Signup and view all the answers

What does the magnetic quantum number, mℓ or m, describe?

The orientation of the orbital in space Signup and view all the answers

What does the spin quantum number, ms or s, refer to?

The 'spin' of an electron in a given orbital Signup and view all the answers

What is the maximum number of electrons possible in a given shell according to the quantum theory?

$2n^2$ Signup and view all the answers

How does the value of n impact the average distance of an electron in the orbital from the nucleus?

The larger n is, the greater the average distance Signup and view all the answers

What is the range of values for the azimuthal or angular momentum quantum number, ℓ?

$0$ to $n-1$ Signup and view all the answers

What type of materials are attracted by a magnet due to containing unpaired electrons or spins?

Diamagnetic Signup and view all the answers

Which principle corresponds to increasing energy of the subshells 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f?

Aufbau principle Signup and view all the answers

Study Notes

Quantum Numbers

Quantum numbers are numerical values that describe the unique quantum state of an electron in an atom.
They can be associated with electron configuration, energy levels, and the shape and orientation of atomic orbitals.

Learning Competencies

Understanding and applying quantum numbers is related to competencies in atomic structure and electron configuration.

Gas Stoichiometry Problems

Gas stoichiometry may involve calculations of gas volumes, gas reactions, and relationships between various gas laws (like ideal gas law).

Atomic Orbitals

Atomic orbitals have specific energy levels, shapes, and orientations related to the probability regions of locating electrons.

Lewis Structure Learning Objective

Drawing Lewis structures of ions involves mastering bonding and stability concepts, specifically related to valence electrons.

Principal Quantum Number (n)

Principal quantum number (n) describes the energy level or shell of an electron, indicating its distance from the nucleus.

Azimuthal Quantum Number (ℓ)

Azimuthal or angular momentum quantum number (ℓ) describes the shape of the orbital, with values ranging from 0 up to (n-1).

Magnetic Quantum Number (mℓ or m)

Magnetic quantum number (mℓ or m) describes the orientation of the orbital in space, taking values from -ℓ to +ℓ.

Spin Quantum Number (ms or s)

Spin quantum number (ms or s) refers to the intrinsic angular momentum or "spin" of an electron, with possible values of +1/2 or -1/2.

Maximum Electrons in a Shell

The maximum number of electrons in a given shell is determined by the formula 2n², where n is the principal quantum number.

Impact of n on Electron Distance

As the value of n increases, the average distance of an electron in the orbital from the nucleus also increases, resulting in higher energy levels.

Range of ℓ Values

The azimuthal or angular momentum quantum number (ℓ) can take values from 0 to (n-1), indicating various subshells (s, p, d, f).

Magnetic Attraction

Materials with unpaired electrons or spins exhibit magnetism and are attracted by a magnetic field.

Energy Increasing Order Principle

The Aufbau principle corresponds to the increasing energy of subshells in the order: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f.

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Description

Test your knowledge of quantum numbers and gas stoichiometry with this quiz. Explore concepts like limiting and excess reagents, gas stoichiometry problems, Graham's law of effusion, and Dalton's law of partial pressure. Also, learn to use quantum numbers to describe an electron in an atom and determine the magnetic property of the atom based on its electronic configuration.