Quantum numbers arise naturally from the mathematics used to describe the possible states of an electron in an atom. The four quantum numbers, the principal quantum number (n), the angular momentum quantum number (ℓ), the magnetic quantum number (mℓ), and the spin quantum number (ms) have strict rules which govern the possible values. Identify allowable combinations of quantum numbers for an electron. Select all that apply.

n = 3, ℓ= –1, mℓ= 0, ms= –1/2
n = 4, ℓ= 0, mℓ= 1, ms= 1/2
n = 5, ℓ= 5, mℓ= –1, ms= –1/2
n = 5, ℓ= 4, mℓ= 0, ms= 1/2
n = 3, ℓ= 0, mℓ= 0, ms= 1/2
n = 2, ℓ= 0, mℓ= 0, ms= 1

I really just don't understand this at all, anything helps! Thank you.

  1. 👍 1
  2. 👎 1
  3. 👁 7,088
  1. You need to know the rules. Here is how you do it. The rules are:
    n = 1,2,3 etc in steps of whole numbers.
    ell (I can't write the script l) is 0, 1, 2, etc in steps of whole numbers but never more than n-1.
    or less than 0
    mell = -ell to + ell in steps of whole numbers (including 0)
    ms can be +1/2 or -1/2

    So look at +1 in the question.
    n = 3. that's permissible.
    ell = -1---can be since ell can be 0, 1, 2 etc but no larger than n-1 and no less than 0.

    Look at 2 in this problem.
    n = 4. That's ok
    ell = 0. That's ok
    mell = 1--can't be. mell may be from -ell to + ell so it may be anything but not less than 0

    You do each of these one by one. Post if you have questions. There is more than one answer that is correct.

    1. 👍 1
    2. 👎 12

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Which of the following set of quantum numbers (ordered n, ℓ, mℓ, ms) are possible for an electron in an atom? Check all that apply. -4, 3, 1, 1/2 2, 1, -2, 1/2 4, 2, 1, -1/2 4, 2, -1, -1/2 2, 4, 1, -1/2 5, 3, -3, 1/2 5, 3, 4,

  2. chemistry

    Suppose you take a trip to a distant universe and find that the periodic table there is derived from an arrangement of quantum numbers different from the one on Earth. The rules in that universe are: 1. principal quantum number n

  3. Chemistry

    For each electron in a ground-state Be atom, select the set of quantum numbers that represents it. Check all that apply. n=1 l=0 ml=-1 ms= +1/2 n=1 l=0 ml=0 ms=-1/2 n=2 l=1 ml=0 ms= -1/2 n=1 l=0 ml=0 ms=+1/2 n=2 l=1 ml=1 ms=+1/2

  4. Chemistry

    The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the

  1. chemistry

    which of the following is a correct set of quantum numbers for an electron in a 5f

  2. AP Chemistry

    Which of the following sets of quantum numbers are allowed for an electron in a hydrogen atom? a)n=3, l=0, ml=0 b)n=4,l=1,ml=-1 c)n=2,l=1,ml=-2

  3. Chemistry AP

    what does this mean (we are on quantum) The figure below represents part of the emission spectrum for a one-electron ion in the gas phase. All the lines result from electronic transmissions from excited states to the n = 3 state.

  4. chemistry

    Which statement describes the principal quantum number (n)? A. The quantum number that indicates the subshell occupied by an electron B. The quantum number that indicates the energy level of the electron C. A subdivision of an

  1. chemistry

    The first ionization potential of the elements B, C, and N (atomic numbers 5, 6, and 7) steadily increases, but that of O is less than that of N. The best interpretation of the lower value for O is that: 1. the ionization

  2. chemistry

    Which of the following quantum numbers describes the shape of an orbital? A) principle quantum number (n) B) magnetic quantum number (ml) C) spin quantum number (ms) D) Schrodinger quantum number (S) E) (azithmal) angular momentum

  3. Chemistry

    Which of the following sets of quantum numbers could possibly describe an electron in the ground-state configurations of beryllium. Choose all that apply (e.g. AB, ABC, ABDF). A) n=1 l=0 ml=0 ms=1/2 B) n=3 l=1 ml=-1 ms=1/2 C) n=2

  4. Chemistry

    Consider an atom of Xenon. How many electrons in this atom... a) have the quantum number of l=2 b) have the quantum number of ml=0 c)have the quantum numbers n=5,ml=2 (at the same time) I think I know the answers. a) 10 b)2 c)2

You can view more similar questions or ask a new question.