Question 1

The following statement describes which subatomic particle best? It is electrically charged.

Accepted Answer

A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C 
A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C

Question 2

The following statement describes which subatomic particle best? It is located outside of the nucleus.

Accepted Answer

A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C 
A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C

Question 3

How many electrons are there in the third shell of sodium,Na (atomic number 11)?

Accepted Answer

A) none 
B) one 
C) two 
D) three 
A) none 
B) one 
C) two 
D) three

Question 4

Which of the following elements is a transition metal?

Accepted Answer

A) xenon (Xe) 
B) lead (Pb) 
C) chlorine (Cl) 
D) silver (Ag) 
E) lithium (Li) 
A) xenon (Xe) 
B) lead (Pb) 
C) chlorine (Cl) 
D) silver (Ag) 
E) lithium (Li)

Question 5

Why isn't dirt listed in the periodic table?

Accepted Answer

A) The periodic table lists only elements made of one kind of material.Dirt is a mixture of elements and compounds. 
B) Elements like dirt and air are so common that there is no need to list them in the periodic table. 
C) Dirt IS listed in the periodic table but is not easily recognized because it is listed as one of the rare earths with its old scientific name,dysprosium,symbol Dy. 
D) None of the above is true. 
A) The periodic table lists only elements made of one kind of material.Dirt is a mixture of elements and compounds. 
B) Elements like dirt and air are so common that there is no need to list them in the periodic table. 
C) Dirt IS listed in the periodic table but is not easily recognized because it is listed as one of the rare earths with its old scientific name,dysprosium,symbol Dy. 
D) None of the above is true.

Question 6

The most massive subatomic particle is the

Accepted Answer

A) electron. 
B) proton. 
C) neutron. 
D) nucleus. 
A) electron. 
B) proton. 
C) neutron. 
D) nucleus.

Question 7

The following statement describes which subatomic particle best? It has a relatively large mass.

Accepted Answer

A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C 
A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C

Question 8

The following statement describes which subatomic particle best? It is a nucleon.

Accepted Answer

A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C 
A) an electron 
B) a proton 
C) a neutron 
D) A and B 
E) B and C

Question 9

Which of the following is a property of light?

Accepted Answer

A) It is a wave. 
B) It is a particle. 
C) Its energy comes in packets of uniform size. 
D) all of the above 
E) none of the above 
A) It is a wave. 
B) It is a particle. 
C) Its energy comes in packets of uniform size. 
D) all of the above 
E) none of the above

Question 10

Which of the following best explains what is happening when an atom emits light?

Accepted Answer

A) An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light. 
B) A proton is undergoing a nuclear change in the nucleus and is emitting a high energy light wave in the process. 
C) An electron is jumping from a low energy state to a high energy state with the difference in energy being converted to light. 
D) Heat energy is speeding up the orbit of the electrons and the resulting Doppler shift causes light to be emitted from the electrons. 
E) Heat energy is converting a neutron into a proton and an electron,which is ejected into the orbit of the nucleus,releasing light energy. 
A) An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light. 
B) A proton is undergoing a nuclear change in the nucleus and is emitting a high energy light wave in the process. 
C) An electron is jumping from a low energy state to a high energy state with the difference in energy being converted to light. 
D) Heat energy is speeding up the orbit of the electrons and the resulting Doppler shift causes light to be emitted from the electrons. 
E) Heat energy is converting a neutron into a proton and an electron,which is ejected into the orbit of the nucleus,releasing light energy.

Question 11

Strontium,Sr (number 38),is especially dangerous to humans because it tends to accumulate in calcium-dependent bone marrow tissues (calcium,Ca,number 20).This fact relates to the organization of the periodic table in that strontium and calcium are both

Accepted Answer

A) metals. 
B) in group 2 of the periodic table. 
C) made of relatively large atoms. 
D) soluble in water. 
A) metals. 
B) in group 2 of the periodic table. 
C) made of relatively large atoms. 
D) soluble in water.

Question 12

If a neutral element has the following chemical symbol,how many electrons does it have? $\begin{array} { c } 
235 \
92
\end{array}$ U

Accepted Answer

A) 92 
B) 82 
C) 235 
D) 143 
E) none of the above 
A) 92 
B) 82 
C) 235 
D) 143 
E) none of the above

Question 13

Suppose that a certain atom possesses only four distinct energy levels.Assuming that all transitions between levels are possible,how many spectral lines will this atom exhibit?

Accepted Answer

A) three 
B) four 
C) six 
D) unlimited 
A) three 
B) four 
C) six 
D) unlimited

Question 14

Which of the following statements does not describe a proton?

Accepted Answer

A) It orbits around the nucleus of an atom. 
B) It has a positive charge equivalent but opposite of an electron's. 
C) It is much more massive than an electron. 
D) It is a nucleon. 
E) It is attracted to negatively charged electrical plates. 
A) It orbits around the nucleus of an atom. 
B) It has a positive charge equivalent but opposite of an electron's. 
C) It is much more massive than an electron. 
D) It is a nucleon. 
E) It is attracted to negatively charged electrical plates.

Question 15

Which of the following physical properties would you expect for krypton (Kr)?

Accepted Answer

A) a gas at room temperature 
B) hard 
C) brittle 
D) shiny 
E) conducts electricity 
A) a gas at room temperature 
B) hard 
C) brittle 
D) shiny 
E) conducts electricity

Question 16

Germanium,Ge (number 32),computer chips operate faster than silicon,Si (number 14),computer chips.So how might a gallium,Ga (number 31),chip compare with a germanium chip?

Accepted Answer

A) A gallium chip would be even faster because the gallium is more metallic. 
B) A gallium chip would be slower because its electrons are more loosely held. 
C) Gallium is located just below aluminum,which is widely known to be an electrical insulator. 
D) Gallium is more nonmetallic and so it does not conduct electrons very well. 
A) A gallium chip would be even faster because the gallium is more metallic. 
B) A gallium chip would be slower because its electrons are more loosely held. 
C) Gallium is located just below aluminum,which is widely known to be an electrical insulator. 
D) Gallium is more nonmetallic and so it does not conduct electrons very well.

Question 17

How might you distinguish a sodium-vapor street lamp from a mercury-vapor street lamp?

Accepted Answer

A) Use binoculars to look for printing adjacent to the bulb. 
B) Look at the street lamps through a spectroscope and match their spectral patterns to their respective atomic spectra. 
C) Ask your local utility company to identify these lamps for you. 
D) The shadows cast from a sodium-vapor street lamp tend to be more diffuse around the edges. 
A) Use binoculars to look for printing adjacent to the bulb. 
B) Look at the street lamps through a spectroscope and match their spectral patterns to their respective atomic spectra. 
C) Ask your local utility company to identify these lamps for you. 
D) The shadows cast from a sodium-vapor street lamp tend to be more diffuse around the edges.

Exam 12: Atoms and the Periodic Table

The following statement describes which subatomic particle best? It is electrically charged.

The following statement describes which subatomic particle best? It is located outside of the nucleus.

How many electrons are there in the third shell of sodium,Na (atomic number 11)?

Which of the following elements is a transition metal?

Why isn't dirt listed in the periodic table?

The most massive subatomic particle is the

The following statement describes which subatomic particle best? It has a relatively large mass.

The following statement describes which subatomic particle best? It is a nucleon.

Which of the following is a property of light?

Which of the following best explains what is happening when an atom emits light?

Strontium,Sr (number 38),is especially dangerous to humans because it tends to accumulate in calcium-dependent bone marrow tissues (calcium,Ca,number 20).This fact relates to the organization of the periodic table in that strontium and calcium are both

If a neutral element has the following chemical symbol,how many electrons does it have? 235 92 U

Suppose that a certain atom possesses only four distinct energy levels.Assuming that all transitions between levels are possible,how many spectral lines will this atom exhibit?

Which of the following statements does not describe a proton?

Which of the following physical properties would you expect for krypton (Kr)?

Germanium,Ge (number 32),computer chips operate faster than silicon,Si (number 14),computer chips.So how might a gallium,Ga (number 31),chip compare with a germanium chip?

How might you distinguish a sodium-vapor street lamp from a mercury-vapor street lamp?

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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