6.7: One More Electron Property: Electron Spin
- Page ID
- 168607
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)Paramagnetic, Diamagnetic and Ferromagnetic
Exercise \(\PageIndex{1}\)
Which of the following statements is/are CORRECT?
- A paramagnetic substance is attracted to a magnetic field.
- An atom with no unpaired electrons is ferromagnetic.
- Atoms with one or more unpaired electrons are paramagnetic.
a. 1 only b. 3 only c. 3 only d. 1 and 3 e. 1,2, and 3
- Answer
-
d. 1 and 3
Exercise \(\PageIndex{2}\)
Which of the following statements is/are CORRECT?
- A diamagnetic substance is strongly attracted to a magnetic field.
- Substances that retain their magnetism after they are withdrawn from a magnetic field are called ferromagnetic.
- Most transition metals and all lanthanide metals are ferromagnetic.
a. 1 only b. 2 only c. 3 only d. 1 and 3 e. 1,2, and 3
- Answer
-
b. 2 only
Quantum Numbers and Spin
Exercise \(\PageIndex{3}\)
What is the value of the spin quantum number for an electron in a 3d orbital?
- 3
- 2
- either \(+\frac{1}{2}\) or \(-\frac{1}{2}\)
- \(-\frac{1}{2}\)
- \(+\frac{1}{2}\)
- Answer
-
c. either \(+\frac{1}{2}\) or \(-\frac{1}{2}\)
Exercise \(\PageIndex{4}\)
Which of the following sets of quantum numbers (n, l, ml, ms) is not permissible?
- 2, 2, 1, \(+\frac{1}{2}\)
- 3, 1, 0, \(-\frac{1}{2}\)
- 1, 0, 0, \(+\frac{1}{2}\)
- 2, 1, 0, \(+\frac{1}{2}\)
- 4, 0, 0, \(-\frac{1}{2}\)
- Answer
-
a. 2, 2, 1, \(+\frac{1}{2}\)