Quantum Numbers Flashcard 2

Front

What are quantum numbers?

Back

Quantum numbers are a set of numerical values that describe the unique quantum state of an electron in an atom, including its energy level, angular momentum, magnetic moment, and spin.

Front

What are the four types of quantum numbers?

Back

The four types of quantum numbers are: 1) Principal quantum number (n), 2) Angular momentum quantum number (l), 3) Magnetic quantum number (m_l), 4) Spin quantum number (m_s).

Front

What does the principal quantum number (n) represent?

Back

The principal quantum number (n) represents the main energy level or shell of an electron in an atom, indicating its distance from the nucleus.

Front

What does the angular momentum quantum number (l) indicate?

Back

The angular momentum quantum number (l) indicates the shape of the orbital and can take on integer values from 0 to n-1.

Front

What is the significance of the magnetic quantum number (m_l)?

Back

The magnetic quantum number (m_l) indicates the orientation of the orbital in space and can take on integer values from -l to +l.

Front

What does the spin quantum number (m_s) represent?

Back

The spin quantum number (m_s) represents the intrinsic spin of an electron, which can be either +1/2 or -1/2.

Front

How do you determine the first two quantum numbers for an element?

Back

To determine the first two quantum numbers for an element, identify the element's electron configuration and find the principal quantum number (n) and the angular momentum quantum number (l) for the outermost electron.

Front

What is the electron configuration for Silver (Ag)?

Back

The electron configuration for Silver (Ag) is [Kr] 4d^10 5s^1.

Front

What is the electron configuration for Rubidium (Rb)?

Back

The electron configuration for Rubidium (Rb) is [Kr] 5s^1.

Front

What is orbital notation?

Back

Orbital notation is a way of representing the arrangement of electrons in an atom using arrows to indicate the spin of electrons in orbitals.