Question 1

Identify the element that contains the following number of protons and neutrons: 36 protons and 48 neutrons.

Accepted Answer

A) Kr 
B) Cd 
C) Po 
D) Mg 
A) Kr 
B) Cd 
C) Po 
D) Mg A

Question 2

The term "light" refers to

Accepted Answer

A) visible light that humans can observe with the naked eye. 
B) all types of electromagnetic radiation. 
C) sunlight. 
D) non-ionizing radiation. 
A) visible light that humans can observe with the naked eye. 
B) all types of electromagnetic radiation. 
C) sunlight. 
D) non-ionizing radiation. B

Question 3

At the time your textbook was written, there were _____________ known different elements.

Accepted Answer

A) 58 
B) 114 
C) 2125 
D) 6.02 × 1023 
A) 58 
B) 114 
C) 2125 
D) 6.02 × 1023 B

Question 4

An element is defined by the number of ________ it contains.

Accepted Answer

A) electrons 
B) protons 
C) neutrons 
D) nuclei 
A) electrons 
B) protons 
C) neutrons 
D) nuclei

Question 5

Which statement is true?

Accepted Answer

A) High energy electromagnetic radiation has very long wavelengths. 
B) Electromagnetic radiation that has very short wavelengths is the least dangerous to humans. 
C) Cell phone radiation is considered ionizing radiation. 
D) A computer emits lower energy radiation than a cell phone. 
A) High energy electromagnetic radiation has very long wavelengths. 
B) Electromagnetic radiation that has very short wavelengths is the least dangerous to humans. 
C) Cell phone radiation is considered ionizing radiation. 
D) A computer emits lower energy radiation than a cell phone.

Question 6

The Energy Independence and Security Act of 2007 stated that

Accepted Answer

A) cars produced after 2007 must get at least 35 mpg. 
B) incandescent bulbs that do not meet certain energy efficiency requirements must be phased out by 2014. 
C) the U.S.must import less than 50% of its oil by the year 2020. 
D) each state must produce at least 40% of its electricity from renewable sources by the year 2015. 
A) cars produced after 2007 must get at least 35 mpg. 
B) incandescent bulbs that do not meet certain energy efficiency requirements must be phased out by 2014. 
C) the U.S.must import less than 50% of its oil by the year 2020. 
D) each state must produce at least 40% of its electricity from renewable sources by the year 2015.

Question 7

Choose the true statement.

Accepted Answer

A) When light is absorbed by an atom, electrons move from a higher energy to a lower energy level. 
B) When light is emitted by an atom, electrons move from a higher energy to a lower energy level. 
C) Sunlight produces light at distinct locations in a line spectrum. 
D) The colors in a rainbow include all wavelengths of the electromagnetic spectrum. 
A) When light is absorbed by an atom, electrons move from a higher energy to a lower energy level. 
B) When light is emitted by an atom, electrons move from a higher energy to a lower energy level. 
C) Sunlight produces light at distinct locations in a line spectrum. 
D) The colors in a rainbow include all wavelengths of the electromagnetic spectrum.

Question 8

Cell phones emit radiation that is of similar frequency to

Accepted Answer

A) X-rays. 
B) microwaves. 
C) visible light. 
D) radio waves. 
A) X-rays. 
B) microwaves. 
C) visible light. 
D) radio waves.

Question 9

How many electrons does a neutral atom of phosphorus contain?

Accepted Answer

A) 3 
B) 30 
C) 31 
D) 15 
A) 3 
B) 30 
C) 31 
D) 15

Question 10

Cell phones communicate with cell phone towers using

Accepted Answer

A) microwave radiation. 
B) visible light. 
C) infrared light. 
D) radio waves. 
A) microwave radiation. 
B) visible light. 
C) infrared light. 
D) radio waves.

Question 11

What is the name of the element that contains 31 protons?

Accepted Answer

A) antimony 
B) gallium 
C) phosphorus 
D) germanium 
A) antimony 
B) gallium 
C) phosphorus 
D) germanium

Question 12

The atomic number of an element is equal to the number of ________ that element contains.

Accepted Answer

A) electrons 
B) protons 
C) neutrons 
D) isotopes 
A) electrons 
B) protons 
C) neutrons 
D) isotopes

Question 13

Which type of visible light would have the shortest wavelength light?

Accepted Answer

A) yellow 
B) blue 
C) red 
D) green 
A) yellow 
B) blue 
C) red 
D) green

Question 14

Electromagnetic radiation that is very energetic will

Accepted Answer

A) be of a low frequency. 
B) have a long wavelength. 
C) contain mostly non-ionizing radiation. 
D) have a short wavelength. 
A) be of a low frequency. 
B) have a long wavelength. 
C) contain mostly non-ionizing radiation. 
D) have a short wavelength.

Question 15

The name of the element whose atomic number is 22 is

Accepted Answer

A) titanium. 
B) sodium. 
C) neon. 
D) tin. 
A) titanium. 
B) sodium. 
C) neon. 
D) tin.

Question 16

Identify the element that contains the following number of protons and neutrons: 29 protons and 35 neutrons.

Accepted Answer

A) I 
B) Br 
C) Gd 
D) Cu 
A) I 
B) Br 
C) Gd 
D) Cu

Question 17

What is the atomic symbol for the element sodium?

Accepted Answer

A) S 
B) So 
C) Na 
D) Dm 
A) S 
B) So 
C) Na 
D) Dm

Question 18

What determines how far from the ground state an electron will jump when energy is added to an atom?

Accepted Answer

A) the size of the atom 
B) the number of electrons in the atom 
C) the amount of energy added to the atom 
D) the number of atoms in a certain sample 
A) the size of the atom 
B) the number of electrons in the atom 
C) the amount of energy added to the atom 
D) the number of atoms in a certain sample

Question 19

Isotopes of which element were used to determine the source of the marble used in the Parthenon?

Accepted Answer

A) oxygen 
B) carbon 
C) chlorine 
D) calcium 
A) oxygen 
B) carbon 
C) chlorine 
D) calcium

Question 20

The scientist credited with bringing the metric system to Russia was

Accepted Answer

A) Marie Curie. 
B) Wilhelm Röntgen. 
C) Anna Bertha. 
D) Dmitri Mendeleev. 
A) Marie Curie. 
B) Wilhelm Röntgen. 
C) Anna Bertha. 
D) Dmitri Mendeleev.

Identify the element that contains the following number of protons and neutrons: 36 protons and 48 neutrons.

The term "light" refers to

At the time your textbook was written, there were _____________ known different elements.

An element is defined by the number of ________ it contains.

Which statement is true?

The Energy Independence and Security Act of 2007 stated that

Choose the true statement.

Cell phones emit radiation that is of similar frequency to

How many electrons does a neutral atom of phosphorus contain?

Cell phones communicate with cell phone towers using

What is the name of the element that contains 31 protons?

The atomic number of an element is equal to the number of ________ that element contains.

Which type of visible light would have the shortest wavelength light?

Electromagnetic radiation that is very energetic will

The name of the element whose atomic number is 22 is

Identify the element that contains the following number of protons and neutrons: 29 protons and 35 neutrons.

What is the atomic symbol for the element sodium?

What determines how far from the ground state an electron will jump when energy is added to an atom?

Isotopes of which element were used to determine the source of the marble used in the Parthenon?

The scientist credited with bringing the metric system to Russia was

The Story of Chemistry the Scientific Method Think, Measure, Rethink

Everything the Ways We Organize and Classify Matter

Bonds an Introduction to the Forces Within Substances

Carbon Elemental Carbon, Organic Molecules, and Carbon Footprints

Air a Study of the Gases in Our Atmosphere

Chemical Reactions How We Keep Track of Chemical Changes

Water Why Water Is Critical for Human Beings and the Planet

Salts and Aqueous Solutions the Nature of Salts and How They Interact With Water

Ph and Acid Rain Acid Rain and Our Environment

Nukes the Fundamentals of Nuclear Chemistry

Energy, Power, and Climate Change the Fundamentals of Nuclear Chemistry

Sustainability and Recycling Finding Better Ways to Use and Reuse Our Resources

Food the Biochemistry of the Foods We Eat

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Exam 2: Atoms All About Atoms and Whats Inside Them

Identify the element that contains the following number of protons and neutrons: 36 protons and 48 neutrons.

The term "light" refers to

At the time your textbook was written, there were _____________ known different elements.

An element is defined by the number of ________ it contains.

Which statement is true?

The Energy Independence and Security Act of 2007 stated that

Choose the true statement.

Cell phones emit radiation that is of similar frequency to

How many electrons does a neutral atom of phosphorus contain?

Cell phones communicate with cell phone towers using

What is the name of the element that contains 31 protons?

The atomic number of an element is equal to the number of ________ that element contains.

Which type of visible light would have the shortest wavelength light?

Electromagnetic radiation that is very energetic will

The name of the element whose atomic number is 22 is

Identify the element that contains the following number of protons and neutrons: 29 protons and 35 neutrons.

What is the atomic symbol for the element sodium?

What determines how far from the ground state an electron will jump when energy is added to an atom?

Isotopes of which element were used to determine the source of the marble used in the Parthenon?

The scientist credited with bringing the metric system to Russia was

The Story of Chemistry the Scientific Method Think, Measure, Rethink

Everything the Ways We Organize and Classify Matter

Bonds an Introduction to the Forces Within Substances

Carbon Elemental Carbon, Organic Molecules, and Carbon Footprints

Air a Study of the Gases in Our Atmosphere

Chemical Reactions How We Keep Track of Chemical Changes

Water Why Water Is Critical for Human Beings and the Planet

Salts and Aqueous Solutions the Nature of Salts and How They Interact With Water

Ph and Acid Rain Acid Rain and Our Environment

Nukes the Fundamentals of Nuclear Chemistry

Energy, Power, and Climate Change the Fundamentals of Nuclear Chemistry

Sustainability and Recycling Finding Better Ways to Use and Reuse Our Resources

Food the Biochemistry of the Foods We Eat

Filters