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# Electron Spin and Principles (College)

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## Electron Spin and Principles

1.
Which of the following describes electron spin quantum number?
1. An orbital holds two electrons, and they have identical spin
2. An orbital holds three electrons, and they have identical spins
3. An orbital holds two electrons, and they have opposite spins
4. An orbital holds three electrons, and they have opposite spins

2.
What are the possible spin values?
1. +1/2
2. -1/2
3. +1/2 or -1/2
4. +1/2, -1/2, +1, -1, 0
3.
Which of the following correctly describes an orbital where the total spin of two electrons is equivalent to 0?
1. paramagnetic
2. multimagnetic
3. diamagnetic
4. none of the above

4.
Which of the following is diamagnetic?
1. He
2. N
3. H
4. Li
5.
Which of the following statements regarding orbitals can provide a reasonable clue that an element is paramagnetic?
1. The subshell is filled
2. The subshell is not filled
3. The subshell is doubly filled
4. The subshell is triply filled

6.
Which of the following is diamagnetic?
1. Li
2. N
3. K
4. Be
7.
Which of the following is paramagnetic?
1. He
2. Be
3. Li
4. Ne

8.
Which of the following is paramagnetic?
1. Ne
2. Xe
3. H
4. Be
9.
$Be^{2+}$ is                                and has a bond order of               .

10.
According to the Pauli Exclusion Principle, in a given atom, no two electrons can have the same four set of quantum numbers.
1. True
2. False
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