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Exam 7: The Electronic Structure of Atoms

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Question 41

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The second line of the Balmer series occurs at a wavelength of 486.1 nm. What is the energy difference between the initial and final levels of the hydrogen atom in this emission process?

A) 2.44 * 10¹⁸ J
B) 4.09 * 10^-19 J
C) 4.09 * 10^-22 J
D) 4.09 * 10^-28 J
E) 1.07 * 10^-48 J

F) A) and D)
G) A) and E)

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Question 42

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Breaking the oxygen-oxygen bond in hydrogen peroxide requires 210 kJ/mol. What is the longest wavelength of light that can cause this bond to be broken?

A) 5.7 * 10^-4 m
B) 9.5 * 10^-31 m
C) 2.8 * 10^-7 m
D) 9.5 * 10^-28 m
E) 5.7 * 10^-7 m

F) B) and E)
G) A) and B)

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Question 43

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Which ground-state atom has an electron configuration described by the following orbital diagram?

A ground-state atom of arsenic has

What is the maximum number of electrons in an atom that can have the following set of quantum numbers? n = 4 l = 3 m_l = -2 m_s = +1/2

An electron in a 3p orbital could have a value of 2 for its angular momentum quantum number (l).

The colors of the visible spectrum are blue, green, orange, red, violet, and yellow. Of these colors, ______ has the least energy.

What is the wavelength, in meters, of an alpha particle with a kinetic energy of 8.0 * 10^-13 J? (mass of an alpha particle = 4.00150 amu; 1 amu = 1.67 * 10^-27 kg)

Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen E_n = -2.18 * 10^-18 J(1/n²)

A neon atom in its ground state will be diamagnetic.

An AM radio station broadcasts at a frequency of 1270 kHz. Calculate the wavelength of the broadcast signal in meters. (c = 2.9979 * 10⁸ m/s)

What is the electron configuration of calcium?

If a hydrogen atom and a helium atom have the same kinetic energy,

What is the total number of electrons possible in the 2p orbitals?

Write the ground state electron configuration for an iodine atom.

What is the ground-state electron configuration for chlorine?

Which element has the following ground-state electron configuration? [Kr]5s¹4d⁵

A possible set of quantum numbers for the last electron added to complete an atom of gallium (Ga) in its ground state is

Which choice lists two elements with ground-state electron configurations that are well known exceptions to the Aufbau principle?

Write the ground state electron configuration for the selenium atom.