Quantum Numbers

Front

What does the principal quantum number (n) represent?

Back

The principal quantum number (n) represents the energy level of an electron in an atom.

Front

Which set of quantum numbers is not allowed: (3,1,1,-1/2), (2,1,-2,+1/2), (4,2,-1,-1/2)?

Back

The set of quantum numbers (2,1,-2,+1/2) is not allowed.

Front

Why can the 3rd energy level fit more electrons?

Back

The 3rd energy level can fit more electrons because the d-block, which can hold 10 electrons, is part of the 3rd energy level.

Front

What is the designation for n=4 and l=3?

Back

The designation for n=4 and l=3 is 4f.

Front

How many electrons can be found in the f orbital?

Back

The f orbital can hold a total of 14 electrons.

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.

Front

What does the azimuthal quantum number (l) indicate?

Back

The azimuthal quantum number (l) indicates the shape of the orbital.

Front

What is the maximum number of electrons in a principal energy level?

Back

The maximum number of electrons in a principal energy level is given by the formula 2n².

Front

What is the magnetic quantum number (m_l)?

Back

The magnetic quantum number (m_l) indicates the orientation of the orbital in space.

Front

What is the spin quantum number (m_s)?

Back

The spin quantum number (m_s) indicates the direction of the electron's spin, which can be +1/2 or -1/2.