Flashcardizz Practice Unit 4 Lesson 3: Quantum Numbers

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. They include the principal quantum number (n), azimuthal quantum number (l), magnetic quantum number (ml), and spin quantum number (ms).

Front

What does the principal quantum number (n) represent?

Back

The principal quantum number (n) indicates the energy level of an electron in an atom and can take positive integer values (1, 2, 3, ...).

Front

What does the azimuthal quantum number (l) represent?

Back

The azimuthal quantum number (l) defines the shape of the orbital and can take integer values from 0 to (n-1). Each value of l corresponds to a specific type of orbital: 0 (s), 1 (p), 2 (d), 3 (f).

Front

What does the magnetic quantum number (ml) represent?

Back

The magnetic quantum number (ml) specifies the orientation of the orbital in space and can take integer values from -l to +l, including zero.

Front

What does the spin quantum number (ms) represent?

Back

The spin quantum number (ms) describes the intrinsic spin of the electron and can have values of +1/2 or -1/2.

Front

What is the correct representation for an orbital with n=3 and l=1?

Back

3p

Front

What is the correct representation for an orbital with n=4 and l=2?

Back

4d

Front

Which quantum numbers describe the final electron to fill Argon?

Back

3, 1, 1, -1/2

Front

Which element has the quantum numbers 4, 2, -1, -1/2?

Back

Rhodium (Rh) has these quantum numbers.

Front

What quantum numbers describe the valence electron of Sodium (Na)?

Back

3, 0, 0, +1/2