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 electron. 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.

1) n=3, l=-2, m(l)= -1, ms= +1/2
2) n = 3, ℓ= 3, mℓ= 1, ms= –1/2
3) n = 2, ℓ= 1, mℓ= 0, ms= 1
4) n = 4, ℓ= 0, mℓ= 1, ms= –1/2
5) n = 5, ℓ= 4, mℓ= 0, ms= –1/2
6) n = 3, ℓ= 2, mℓ= –1, ms= 1/2

I thought 4,5 and 6 were right but it says I am wrong.

  1. 👍 0
  2. 👎 0
  3. 👁 434
  1. 3) is out, spin is =/- 1/2

    1) is out, negative L

    2) is out , biggest L is n-1 or 2

    4) is out, with L=0 you only have +/- 1/2 for spin, no ml - 1

    5) looks possible

    6) looks possible

    1. 👍 0
    2. 👎 0
    posted by Damon
  2. but on 4 the spin is Ms= -1/2

    1. 👍 0
    2. 👎 0
  3. 4 is out because with L = 0 you have no choice of ml = 1.
    wtih L = 0
    ml = 0
    and spin can be 1/2 or -1/2

    ml = 1 is not allowed if L = 0

    1. 👍 0
    2. 👎 0
    posted by Damon
  4. The problem with 4 is not the +/- 1/2, you can't have ml of one with ell = 0
    m ell values are + ell to -ell. If ell = 0, you may have m ell of zero only. Can't be + one.

    1. 👍 0
    2. 👎 0
  5. ml ranges from -L to +L
    If L = 0, ml = 0

    1. 👍 0
    2. 👎 0
    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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

    asked by Anonymous on October 29, 2012
  2. 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

    asked by Morgan on December 11, 2014
  3. 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

    asked by Teresa on November 14, 2011
  4. Chemistry

    The principal quantum number (n): A) specifies the subshell of the orbital. B) specifies the principal shell of the orbital. C) specifies the 3-D shape of the orbital. D) specifies the maximum number of electrons. E) none of the

    asked by Katelyn on October 21, 2016
  5. Chemistry

    The principal quantum number (n): (1) specifies the subshell of the orbital. (2) specifies the principal shell of the orbital. (3) specifies the 3-D shape of the orbital. (4) specifies the maximum number of electrons. (5) none of

    asked by Beth on October 27, 2016
  6. Chemistry

    The principal quantum number (n): 1) specifies the subshell of the orbital. 2) specifies the principal shell of the orbital. 3) specifies the 3-D shape of the orbital. 4) specifies the maximum number of electrons. 5) none of the

    asked by Beth on October 22, 2016
  7. Chemistry

    The energy (in joules) of an electron energy level in the Bohr atom is given by the expression: En = -2.179 x 10-18/n2 J where n is the principal quantum number for the energy level. What is the frequency in Hz of the

    asked by Andy on October 21, 2013
  8. Chemistry

    1) The letter "p" in the symbol 4p^3 indicates the ___. A) spin of an electron B) orbital shape*** C) principal energy level D) speed of an electron 2) If the spin of one electron in an orbital is clockwise, what is the spin of

    asked by Mary on October 10, 2016
  9. chemistry

    the third quantum number, m, indicates what property of the electron? a) orbital b) spin c) charge d) energy level

    asked by Megan on February 28, 2008
  10. Chemistry

    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

    asked by Ode on September 15, 2018

More Similar Questions