Unit 8 Quantum Mechanics Quiz -- Thurston High Chemistry

Multiple Choice (Choose the best answer.)

1. Which diagram shows a 2s orbital?

   It is impossible to tell.

   None of the above are 2s orbitals.

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2. The orbital shown in A can be found in what energy level(s):

   The orbital can be found in all energy levels.

   The orbital can be found in every energy level except the first one.

   The orbital can be found in every energy level except the first two.

   The orbital can be found in every energy level except the first three.

   The orbital cannot be found in any energy levels.

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3. In order to change the orbital shown in C to the orbital shown in B an electron would have to

   reverse its spin.

   absorb energy.

   emit energy.

   be removed from the atom.

   None of these are correct.

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4. What is the maximum number of electrons that can be held in A?

   0

   1

   2

   3

   None. This is orbital does not exist.

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5. How many different types of orbitals are there with a shape similar to A in the third energy level?

   0

   1

   2

   3

   4

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6. The second energy level contains how many sub-orbitals?

   1

   2

   3

   4

   5

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7. The second energy level can hold a maximun of how many electrons?

   2

   4

   6

   8

   10

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8. What is the relationship between the energy level (n) and the number of electrons in the quantum mechanical view of the atom?

   2 n

   n²

   2 n²

   4 n

   None of these are correct.

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9. The electron configuration for Sulfur is:

   1s² 2s² 2p⁶ 3s² 3p⁴

   1s² 2s² 2p⁶ 2d¹⁰ 3s² 3p⁴

   [Kr] 3s² 3p⁴

   [Ne] 3s² 3p⁴

   More than one of these are correct.

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10. The electron configuration for O ^2- is:

    1s² 2s² 2p⁴

    [He] 2s² 2p⁴

    1s² 2s² 2p⁶

    1s² 2s² 2p²

    More than one of these are correct.

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11. Which of the following energy diagrams is correct for Mg?

    1s	2s	2p	3s	3p	4s

    1s	2s	2p	3s	3p	4s

    1s	2s	2p	3s	3p	4s

    1s	2s	2p	3s	3p	4s

    None of these are correct.

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12. What is the energy diagram for Mg ²⁺?

    1s	2s	2p	3s	3p	4s

    1s	2s	2p	3s	3p	4s

    1s	2s	2p	3s	3p	4s

    1s	2s	2p	3s	3p	4s

    None of these are correct.

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13. Ions tend to form when atoms

    Gain electrons to achieve a noble gas configuration.

    Lose electrons to achieve a noble gas configuration.

    Gain electrons to achieve an alkali metal configuration.

    Lose electrons to achieve an alkali metal configuration.

    More than one of these is correct.

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