1. (a) Use the Bohr model to find the radius and energy of the first excited...

1. (a) Use the Bohr model to find the radius and energy of the first excited state (n=2) of doubly ionized lithium.

(b)The long and short wavelength limits of a series of energy transitions in the hydrogen atom correspond to the transitions ???????? = ∞ → ?????? ???????? = ?????? + 1 → ?????? Calculate the long and short wavelength limits of the Balmer series (?????? = 2)

2. (a) What is the kinetic energy of an electron whose de Broglie wavelength is equal to that of a 10 keV photon?

(b)A speck of dust of mass 0.100 ?? falls through the air with a speed of 1.00 ??/?. What is the de Broglie wavelength of the speck of dust? Is this easy to observe?

Expert Solution

genius_generous answered 1 year ago

Use the Bohr model to calculate the radius, in angstroms, of an He+ ion with an...

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In the Bohr model of the hydrogen atom, an electron in the 7th excited state moves at a speed of 4.47 104 m/s in a circular path of radius 2.59 10-9 m. What is the effective current associated with this orbiting electron? .....mA

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A hydrogen atom is in its second excited state, n = 3. Using the Bohr model...

A hydrogen atom is in its second excited state, n = 3. Using the Bohr model of hydrogen, find the linear momentum. Using the Bohr model of hydrogen, find the angular momentum of the electron in this atom.

1. Determine the ratio of populations in the lowest and first excited energy levels, Po/P1, for...

1. Determine the ratio of populations in the lowest and first excited energy levels, Po/P1, for the indicated systems at two temperatures, 50 K and 298 K: a) The 1700 cm−1 stretching mode for the carbonyl group in the peptide bond of a polypeptide b) the 150 cm−1 torsional mode for the C=C bond in trans-2-butadiene

1. Determine the ratio of populations in the lowest and first excited energy levels, Po/P1, for...

1. Determine the ratio of populations in the lowest and first excited energy levels, Po/P1, for the indicated systems at two temperatures, 50 K and 298 K: a) The 1700 cm−1 stretching mode for the carbonyl group in the peptide bond of a polypeptide b) the 150 cm−1 torsional mode for the C=C bond in trans-2-butadiene 2. The heat capacities of liquid water and of steam (water vapor) are 18.0 and 7.9 cal/mol K, respectively. Use a microscopic (structural, modes...

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1. (a) Use the Bohr model to find the radius and energy of the first excited...

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