Question 1

How many electrons can be found with principal quantum number n = 3 in a suitably heavy atom?

Accepted Answer

A) 18 
B) 6 
C) 20 
D) 9 
A) 18 
B) 6 
C) 20 
D) 9

Question 2

The number of electrons in the nucleus is equal to the number of protons.

Accepted Answer

A) True 
 B)False

Question 3

Light shines through atomic hydrogen gas.It is seen that the gas absorbs light readily at a wavelength of 91.33 nm.What is the level to which the hydrogen is being excited by the absorption of light of this wavelength? Assume that the most of the atoms in the gas are in the lowest level.

Accepted Answer

A) 25 
B) 27 
C) 22 
D) 32 
A) 25 
B) 27 
C) 22 
D) 32

Question 4

The shortest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is n = 3,is closest to:

Accepted Answer

A) 820 nm 
B) 850 nm 
C) 880 nm 
D) 910 nm 
E) 940 nm 
A) 820 nm 
B) 850 nm 
C) 880 nm 
D) 910 nm 
E) 940 nm

Question 5

Neon has 10 electrons.The element of next higher Z that has chemical properties very similar to those of neon has Z equal to:

Accepted Answer

A) 11 
B) 17 
C) 18 
D) 19 
E) 36 
A) 11 
B) 17 
C) 18 
D) 19 
E) 36

Question 6

The longest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is n = 3,is closest to:

Accepted Answer

A) 550 nm 
B) 575 nm 
C) 600 nm 
D) 625 nm 
E) 650 nm 
A) 550 nm 
B) 575 nm 
C) 600 nm 
D) 625 nm 
E) 650 nm

Question 7

Calculate the orbital Bohr radius of the n = 3 excited state in a hydrogen atom.

Accepted Answer

A) 0.476 nm 
B) 0.159 nm 
C) 0.381 nm 
D) 0.548 nm 
A) 0.476 nm 
B) 0.159 nm 
C) 0.381 nm 
D) 0.548 nm

Question 8

No two distinct atoms produce the same emission spectrum.

Accepted Answer

A) True 
 B)False

How many electrons can be found with principal quantum number n = 3 in a suitably heavy atom?

The number of electrons in the nucleus is equal to the number of protons.

Light shines through atomic hydrogen gas.It is seen that the gas absorbs light readily at a wavelength of 91.33 nm.What is the level to which the hydrogen is being excited by the absorption of light of this wavelength? Assume that the most of the atoms in the gas are in the lowest level.

The shortest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is n = 3,is closest to:

Neon has 10 electrons.The element of next higher Z that has chemical properties very similar to those of neon has Z equal to:

The longest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is n = 3,is closest to:

Calculate the orbital Bohr radius of the n = 3 excited state in a hydrogen atom.

No two distinct atoms produce the same emission spectrum.

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Vectors and Motion in Two Dimensions

Forces and Newtons Laws of Motion

Applying Newtons Laws

Circular Motion,orbits,and Gravity

Rotational Motion

Equilibrium and Elasticity

Momentum

Energy and Work

Using Energy

Thermal Properties of Matter

Fluids

Oscillations

Traveling Waves and Sound

Superposition and Standing Waves

Wave Optics

Ray Optics

Optical Instruments

Electric Fields and Forces

Electric Potential

Current and Resistance

Circuits

Magnetic Fields and Forces

Electromagnetic Induction and Electromagnetic Waves

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Relativity

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Exam 29: Atoms and Molecules

How many electrons can be found with principal quantum number n = 3 in a suitably heavy atom?

The number of electrons in the nucleus is equal to the number of protons.

Light shines through atomic hydrogen gas.It is seen that the gas absorbs light readily at a wavelength of 91.33 nm.What is the level to which the hydrogen is being excited by the absorption of light of this wavelength? Assume that the most of the atoms in the gas are in the lowest level.

The shortest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is n = 3,is closest to:

Neon has 10 electrons.The element of next higher Z that has chemical properties very similar to those of neon has Z equal to:

The longest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is n = 3,is closest to:

Calculate the orbital Bohr radius of the n = 3 excited state in a hydrogen atom.

No two distinct atoms produce the same emission spectrum.

Representing Motion

Motion in One Dimension

Vectors and Motion in Two Dimensions

Forces and Newtons Laws of Motion

Applying Newtons Laws

Circular Motion,orbits,and Gravity

Rotational Motion

Equilibrium and Elasticity

Momentum

Energy and Work

Using Energy

Thermal Properties of Matter

Fluids

Oscillations

Traveling Waves and Sound

Superposition and Standing Waves

Wave Optics

Ray Optics

Optical Instruments

Electric Fields and Forces

Electric Potential

Current and Resistance

Circuits

Magnetic Fields and Forces

Electromagnetic Induction and Electromagnetic Waves

Ac Electricity

Relativity

Quantum Physics

Nuclear Physics

Filters