Quantum Numbers

What is the spin quantum number (m_s)?

• A. It describes the position of an electron in an atom.

• B. It describes the intrinsic spin of an electron and can be either +1/2 or -1/2.

• C. It indicates the energy level of an electron.

• D. It represents the angular momentum of an electron.

What is the value of m_s for an electron with spin down?

• 1/2

• 0

• -1/2

• -1

What are quantum numbers?

• Values that describe the energy levels, orbitals, and spin of electrons in an atom.

• Numbers that represent the mass of an atom.

• Measurements of the temperature of electrons in an atom.

• Constants used to calculate the speed of light.

How do you determine the number of orbitals in a given energy level (n)?

• n

• 2n

• n²

• n+1

What is the value of m_s for an electron with spin up?

• +1/2

• -1/2

• 0

• +1

For iron (Fe), what is the value of the angular momentum quantum number (l) for the outermost electron?

• 0 (s orbital)

• 1 (p orbital)

• 2 (d orbital)

• 3 (f orbital)

What is the magnetic quantum number (m_l)?

• A quantum number that determines the size of the orbital.

• A quantum number that indicates the orientation of the orbital in space and can take values from -l to +l.

• A quantum number that defines the energy level of an electron.

• A quantum number that specifies the spin of an electron.

What is the significance of the quantum number m_l?

• m_l determines the orientation of the orbital in a magnetic field.

• m_l indicates the energy level of the electron.

• m_l defines the shape of the orbital.

• m_l specifies the spin direction of the electron.

For lithium (Li), what is the value of the principal quantum number (n)?

• 1 for the first electron

• 2 for the second electron

• 3 for the third electron

• 0 for no electrons

What is the relationship between n and l?

• l can take values from 0 to (n-1), meaning l is always less than n.

• l can take values from 1 to n, meaning l is always greater than n.

• l can take values equal to n, meaning l is sometimes equal to n.

• l can take values from 0 to n, meaning l is always greater than or equal to n.