Question 1

When an atom of sodium in the surface of the sun has two electrons removed, then

Accepted Answer

A)  it has a negative charge. 
B)  it is a positive ion susceptible to acceleration in solar magnetic fields. 
C)  it is a negatively charged rubidium atom. 
D)  it becomes aluminum. 
A)  it has a negative charge. 
B)  it is a positive ion susceptible to acceleration in solar magnetic fields. 
C)  it is a negatively charged rubidium atom. 
D)  it becomes aluminum.

Question 2

The idea that light could be emitted only in discrete chunks, or quanta, instead of in continuous amounts was first put forth to explain which of the following phenomena?

Accepted Answer

A)  Blackbody radiation. 
B)  X-rays. 
C)  The spectrum of atomic hydrogen. 
D)  Cathode rays. 
E)  Radioactive decay. 
A)  Blackbody radiation. 
B)  X-rays. 
C)  The spectrum of atomic hydrogen. 
D)  Cathode rays. 
E)  Radioactive decay.

Question 3

Helium has chemical properties similar to

Accepted Answer

A)  boron. 
B)  hydrogen. 
C)  lithium. 
D)  neon.
Fill in the Blank Questions 
A)  boron. 
B)  hydrogen. 
C)  lithium. 
D)  neon.
Fill in the Blank Questions

Question 4

A diamond is the hardest mineral on Earth, yet it is mostly empty space because the carbon atoms are

Accepted Answer

A)  not as close together as they should be. 
B)  held together by electrical forces. 
C)  themselves mostly empty space. 
D)  in perpetual motion. 
A)  not as close together as they should be. 
B)  held together by electrical forces. 
C)  themselves mostly empty space. 
D)  in perpetual motion.

Question 5

If h = Planck's constant, the frequency of light emitted when an atom makes a transition is equal to

Accepted Answer

A)  the energy of revolution of the electron in its lowest energy orbit divided by h. 
B)  the energy gained by the electron divided by h. 
C)  the energy lost by the electron divided by h. 
D)  the energy of revolution of the electron in its highest energy orbit divided by h. 
A)  the energy of revolution of the electron in its lowest energy orbit divided by h. 
B)  the energy gained by the electron divided by h. 
C)  the energy lost by the electron divided by h. 
D)  the energy of revolution of the electron in its highest energy orbit divided by h.

Question 6

A true statement about atoms is that they

Accepted Answer

A)  are basically unstable. 
B)  all have the same number of electrons. 
C)  are big enough to be seen by the eye. 
D)  consist mostly of empty space. 
A)  are basically unstable. 
B)  all have the same number of electrons. 
C)  are big enough to be seen by the eye. 
D)  consist mostly of empty space.

Question 7

According to Heisenberg's principle, if one attempts to make a precise measurement of the linear momentum of a particle, he/she will get a large uncertainty in the determination of the ________ of the particle.

Accepted Answer

position o

When an atom of sodium in the surface of the sun has two electrons removed, then

The idea that light could be emitted only in discrete chunks, or quanta, instead of in continuous amounts was first put forth to explain which of the following phenomena?

Helium has chemical properties similar to

A diamond is the hardest mineral on Earth, yet it is mostly empty space because the carbon atoms are

If h = Planck's constant, the frequency of light emitted when an atom makes a transition is equal to

A true statement about atoms is that they

According to Heisenberg's principle, if one attempts to make a precise measurement of the linear momentum of a particle, he/she will get a large uncertainty in the determination of the ________ of the particle.

Physics, the Fundamental Science

Describing Motion

Falling Objects and Projectile Motion

Newtons Laws: Explaining Motion

Circular Motion, the Planets, and Gravity

Energy and Oscillations

Momentum and Impulse

Rotational Motion of Solid Objects

The Behavior of Fluids

Temperature and Heat

Heat Engines and the Second Law of Thermodynamics

Electrostatic Phenomena

Electric Circuits

Magnets and Electromagnetism

Making Waves

Light Waves and Color

Light and Image Formation

The Nucleus and Nuclear Energy

Relativity

Beyond Everyday Phenomena

Filters

Exam 18: The Structure of the Atom

When an atom of sodium in the surface of the sun has two electrons removed, then

The idea that light could be emitted only in discrete chunks, or quanta, instead of in continuous amounts was first put forth to explain which of the following phenomena?

Helium has chemical properties similar to

A diamond is the hardest mineral on Earth, yet it is mostly empty space because the carbon atoms are

If h = Planck's constant, the frequency of light emitted when an atom makes a transition is equal to

A true statement about atoms is that they

According to Heisenberg's principle, if one attempts to make a precise measurement of the linear momentum of a particle, he/she will get a large uncertainty in the determination of the ________ of the particle.

Physics, the Fundamental Science

Describing Motion

Falling Objects and Projectile Motion

Newtons Laws: Explaining Motion

Circular Motion, the Planets, and Gravity

Energy and Oscillations

Momentum and Impulse

Rotational Motion of Solid Objects

The Behavior of Fluids

Temperature and Heat

Heat Engines and the Second Law of Thermodynamics

Electrostatic Phenomena

Electric Circuits

Magnets and Electromagnetism

Making Waves

Light Waves and Color

Light and Image Formation

The Nucleus and Nuclear Energy

Relativity

Beyond Everyday Phenomena

Filters