Yours

6.5: The Modern View of Electronic Structure: Quantum Mechanics

Chem 1402:General Chemistry I · LibreTexts

0%

Contents

    Text

    Size
    100%
    Theme
    Typeface
    Line length
    Spacing

    From LibreTexts, under CC BY-NC-SA 4.0, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    Quantum Numbers

    Exercise \(\PageIndex{1}\)

    What is the value of the orbital angular momentum quantum number (l) for an electron in a 4f orbital?

    a. 1    b. 4    c. 2    d. 3    e. 0

    Answer

    d. 3

    Exercise \(\PageIndex{2}\)

    How many orbitals have the following set of quantum numbers: n = 5, l= 3, ml= –1?

    a. 0    b. 1    c. 3    d. 6    e. 7

    Answer

    b. 1 orbital

    Exercise \(\PageIndex{3}\)

    Which of the following sets of quantum numbers is not allowed?

    1. n = 4, l = 2, ml = -2
    2. n = 6, l = 1, ml = 1
    3. n = 5, l = 4, ml = -4
    4. n = 2, l = 1, ml = -3
    5. n = 6, l = 3, ml = -2
    Answer

    d. n = 2, l = 1, ml = -3

    Exercise \(\PageIndex{4}\)

    What is the total number of orbitals having n = 3 and l= 2?

    1. 1 orbital
    2. 3 orbitals
    3. 5 orbitals
    4. 7 orbitals
    5. 10 orbitals
    Answer

    a. 1 orbital

    Exercise \(\PageIndex{5}\)

    How many f orbitals are in the n = 4 shell?

    1. 5 f orbitals
    2. 8 f orbitals
    3. 3 f orbitals
    4. 1 f orbital
    5. 7 f orbitals
    Answer

    e. 7 f orbitals

    Exercise \(\PageIndex{6}\)

    What type of orbital is designated n = 4, l= 2, ml= 2?

    a. 4f    b. 4d    c. 4p    d. 4g    e. 4s

    Answer

    b. 4d

    Exercise \(\PageIndex{7}\)

    Which type of orbital is designated n = 2 and l= 1?

    a. 2p    b. 3s    c. 4d    d. 1f    e. 2d

    Answer

    a. 2p

    Exercise \(\PageIndex{8}\)

    Which of the following orbital can be represented by n = 4, l= 3, and ml = –2?

    a. 4s    b. 4p    c. 4d    d. 4f    e. None of these

    Answer

    d. 4f

    Exercise \(\PageIndex{9}\)

    A possible value of the magnetic quantum number ml for a 5p electron is

    a. 1    b. 4    c. 5    d. -6    e. 3

    Answer

    a. 1

    Exercise \(\PageIndex{10}\)

    How many values are there for the magnetic quantum number (ml) when the value of the angular momentum quantum number (l) is 4?

    a. 11    b. 9    c. 2    d. 4    e. 15

    Answer

    b. 9

    Exercise \(\PageIndex{11}\)

    What is the total number of subshells found in the n = 7 shell?

    a. 7    b. 49    c. 6    d. 8    e. 9

    Answer

    a. 7 subshells

    Exercise \(\PageIndex{12}\)

    Which of the following sets of quantum numbers refers to a 4d orbital?

    1. n = 2, l = 1, ml = -1
    2. n = 2, l = 4, ml = -1
    3. n = 4, l = 2, ml = -1
    4. n = 4, l = 3, ml = 0
    5. n = 4, l = 3, ml = +2
    Answer

    c. n = 4, l = 2, ml = -1

    Exercise \(\PageIndex{13}\)

    The (principal quantum number) n = ____ shell is the lowest that may contain s-orbitals.

    a. 1    b. 2    c. 3    d. 4    e. 5

    Answer

    a. 1

    6.5: The Modern View of Electronic Structure: Quantum Mechanics is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.