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Graded quiz 1 - covers Chapter 6: electronic structure of atoms

Name: Peter Wan (Preview)

Start time: September 22, 2004 2:15pm

Time allowed: 40 minutes

Number of questions: 10

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Question 1 (1 point)

Question 1

The energy of a photon of light is __________ proportional to its frequency and __________ proportional to its wavelength.

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nmlkj a. directly,directly

nmlkj b. inversely,inversely

nmlkj c. inversely,directly

nmlkji d. directly,inversely

nmlkj e. indirectly, no

Question 2 (1 point)

Question 2

What is the frequency ( ) of a photon that has an energy of 4.38 x J?

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nmlkj a. 436 nmlkji b. 6.61 x nmlkj c. 1.45 x nmlkj d. 2.30 x nmlkj e. 1.31 x

Question 3 (1 point)

Question 3

The lines in the emission spectrum of hydrogen result from __________.

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nmlkji a. energy given off in theform of visible light

when an electron moves

from a higher energy

state to a lower energy

state

nmlkj b. electronsgiven off by

hydrogen

when it burns

nmlkj c. electronsgiven off by

hydrogen as it

cools

nmlkj d. decomposinghydrogen

atoms

nmlkj e. protons giveoff when

hydrogen

burns

Question 4 (1 point)

Question 4

The wavelength of an electron whose velocity is 1.7 x m/s and whose mass is 9.1 x g is __________ m.

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nmlkj a. 4.3 x nmlkj b. 12 nmlkji c. 4.3 x nmlkj d. 2.3 x nmlkj e. 2.3 x

Question 5 (1 point)

Question 5

All of the orbitals in a given electron shell have the same value of the __________ quantum number.

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nmlkji a. principal nmlkj b. azimuthal nmlkj c. magnetic nmlkj d. spin nmlkj e. psi

Question 6 (1 point)

Question 6

The __________ quantum number defines the shape of an orbital.

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nmlkj a. spin nmlkj b. magnetic nmlkj c. principal nmlkji d. azimuthal nmlkj e. psi

Question 7 (1 point)

Question 7

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Which of the subshells below do not exist due to the constraints upon the azimuthal quantum number?

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nmlkji a. 2d nmlkj b. 2s nmlkj c. 2p nmlkj d. all of these nmlkj e. none of these

Question 8 (1 point)

Question 8

The 4d subshell in the ground state of atomic xenon contains __________ electrons.

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nmlkj a. 2 nmlkj b. 6 nmlkj c. 8 nmlkji d. 10 nmlkj e. 36

Question 9 (1 point)

Question 9

The frequency of electromagnetic radiation required to promote an electron from n = 2 to n = 4 in a Bohr hydrogen atom is

__________ Hz.

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nmlkj a. 4.1 x nmlkji b. 6.2 x nmlkj c. 5.4 x nmlkj d. 8.2 x nmlkj e. 4.1 x

Question 10 (1 point)

Question 10

When the electron in a hydrogen atom moves from n = 6 to n = 1, light with a wavelength of __________ nm is emitted.

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nmlkj a. 487 nmlkj b. 411 nmlkj c. 434 nmlkji d. 93.8 nmlkj e. 657

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