What does the principal quantum number (n) indicate about an electron in an atom?

• The shape of the electron's orbital

• The energy level of the electron

• The charge of the electron

• The spin direction of the electron

Which of the following is a possible value for the principal quantum number (n)?

• -1

• 0

• 1.5

• 3

What does the angular momentum quantum number (L) describe?

• The energy level of an electron

• The shape of the sublevel

• The spin of the electron

• The charge of the electron

For the p sublevel, what is the value of the angular momentum quantum number (L)?

• 3

• 2

• 1

• 0

If n is 3, what are the possible values for L?

• 0, 1, 3

• 1, 2, 3

• 1, 2, 4

• 0, 1, 2

Which sublevel does not exist in the first energy level?

• s

• p

• d

• f

What does the magnetic quantum number (ML) describe?

• The shape of the sublevel

• The spin of the electron

• The energy level of an electron

• The specific orbital within a sublevel

For the d sublevel, how many orbitals are there?

• 5

• 3

• 7

• 9

Tags

NGSS.HS-PS1-1

If L is 2, what are the possible values for ML?

• -2, -1, 0, 1, 2

• 0, 1, 2

• -1, 0, 1

• -3, -2, -1, 0, 1, 2, 3

What is the maximum number of electrons that can occupy a single orbital?

• 1

• 2

• 3

• 4