Segundo Parcial de Química 1era. parte

What does the principal quantum number (n) describe?

• The shape of the orbital

• The orientation of the orbital

• The size and energy of the orbital

• The type of sublevel

What is the maximum possible value for the spin quantum number (s)?

• +1

• +1/2

• -1

• -1/2

What values can the azimuthal quantum number (l) have if n = 3?

• 0, 1, 2

• 1, 2, 3

• 0, 1

• 1, 2

What does the magnetic quantum number (m) represent?

• The orientation of the orbital in space

• The energy of the electron

• The speed of the electron

• The radius of the orbital

If n = 4 and l = 1, what are the possible values of m?

• -4, -3, -2, -1, 0, 1, 2, 3, 4

• -2, -1, 0, 1, 2

• -1, 0, 1

• -3, -2, -1, 0, 1, 2, 3

What quantum number determines the energy of an electron in an atom?

• Principal quantum number

• Spin quantum number

• Magnetic quantum number

• None

If an electron is in a d sublevel, what is the value of l?

• 1

• 2

• 3

• 0

Which of the following combinations of quantum numbers (n, l, ml, ms) is incorrect?

• (2, 1, 0, +1/2)

• (3, 2, -3, -1/2)

• (4, 2, 1, +1/2)

• (1, 0, 0, -1/2)

What does the spin quantum number (ms) describe?

• The shape of the orbital

• The orientation of the orbital

• The energy of the orbital

• The direction of the electron's spin

What does the azimuthal quantum number (l) determine?

• The orientation of the orbital in space

• The shape of the orbital

• The direction of the spin

• The total energy of the electron