Question 1

Write the name and symbol for the element with atomic number 51 is

Accepted Answer

A) Sb, antimony. 
B) Pd, palladium. 
C) Ce, cerium. 
D) Mg, magnesium. 
A) Sb, antimony. 
B) Pd, palladium. 
C) Ce, cerium. 
D) Mg, magnesium.

Question 2

If the diameter of an atom is likened to the distance between San Francisco and Washington, D.C., the size of the nucleus of this atom would be equivalent to

Accepted Answer

A) the state of Rhode Island. 
B) the city of Denver. 
C) a store in Kansas. 
D) a hair on the head of a person in Illinois. 
A) the state of Rhode Island. 
B) the city of Denver. 
C) a store in Kansas. 
D) a hair on the head of a person in Illinois.

Question 3

Yellow light has a wavelength of about 655 nm.Electromagnetic radiation whose wavelength is 455 nm would most likely belong to

Accepted Answer

A) radio waves. 
B) X-rays. 
C) violet light. 
D) infrared light. 
A) radio waves. 
B) X-rays. 
C) violet light. 
D) infrared light.

Question 4

A neutral atom containing 8 protons will contain how many electrons?

Accepted Answer

A) 2 
B) 4 
C) 8 
D) 16 
A) 2 
B) 4 
C) 8 
D) 16

Question 5

How many neutrons, protons and electrons are in an atom of Eu-153?

Accepted Answer

A) 63 protons, 63 electrons, 90 neutrons 
B) 153 protons, 63 electrons, 63 neutrons 
C) 152 electrons, 153 electrons, 63 neutrons 
D) 90 electrons, 90 protons, 63 neutrons 
A) 63 protons, 63 electrons, 90 neutrons 
B) 153 protons, 63 electrons, 63 neutrons 
C) 152 electrons, 153 electrons, 63 neutrons 
D) 90 electrons, 90 protons, 63 neutrons

Question 6

Which element is the only element to contain only one proton?

Accepted Answer

A) helium 
B) carbon 
C) neon 
D) hydrogen 
A) helium 
B) carbon 
C) neon 
D) hydrogen

Question 7

Isotopes of an element differ in the number of __________ that they contain.

Accepted Answer

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

Question 8

Identify the number of protons and neutrons in an atom of chromium.

Accepted Answer

A) 24 protons, 28 neutrons 
B) 28 protons, 24 neutrons 
C) 52 neutrons, 24 protons 
D) 52 protons, 28 neutrons 
A) 24 protons, 28 neutrons 
B) 28 protons, 24 neutrons 
C) 52 neutrons, 24 protons 
D) 52 protons, 28 neutrons

Question 9

A neutral atom of sulfur will contain how many electrons?

Accepted Answer

A) 32 
B) 6 
C) 15 
D) 16 
A) 32 
B) 6 
C) 15 
D) 16

Question 10

Rank the following from shortest to longest wavelength: microwaves, yellow light, X-rays, gamma rays.

Accepted Answer

A) X-rays, gamma rays, yellow light, microwaves 
B) microwaves, yellow light, X-rays, gamma rays 
C) gamma rays, X-rays, yellow light, microwaves 
D) yellow light, microwaves, gamma rays, X-rays 
A) X-rays, gamma rays, yellow light, microwaves 
B) microwaves, yellow light, X-rays, gamma rays 
C) gamma rays, X-rays, yellow light, microwaves 
D) yellow light, microwaves, gamma rays, X-rays

Question 11

Electrons can be promoted from a low energy level to a higher one

Accepted Answer

A) by adding electricity to the atom. 
B) by exposing the atom to any type of light. 
C) by vigorously shaking a sample of atoms. 
D) by dissolving a sample of atoms in water. 
A) by adding electricity to the atom. 
B) by exposing the atom to any type of light. 
C) by vigorously shaking a sample of atoms. 
D) by dissolving a sample of atoms in water.

Question 12

The element that has 76 protons in its nucleus is called

Accepted Answer

A) arsenic. 
B) osmium. 
C) thallium. 
D) hafnium. 
A) arsenic. 
B) osmium. 
C) thallium. 
D) hafnium.

Question 13

Organize these elements from least number of protons to most: chromium, magnesium, arsenic, oxygen.

Accepted Answer

A) oxygen, magnesium, chromium, arsenic 
B) magnesium, chromium, arsenic, oxygen 
C) oxygen, arsenic, chromium, magnesium 
D) arsenic, chromium, oxygen, magnesium 
A) oxygen, magnesium, chromium, arsenic 
B) magnesium, chromium, arsenic, oxygen 
C) oxygen, arsenic, chromium, magnesium 
D) arsenic, chromium, oxygen, magnesium

Question 14

Street lamps that give off yellow light are most often filled with atoms of what element?

Accepted Answer

A) mercury 
B) lithium 
C) sodium 
D) chlorine 
A) mercury 
B) lithium 
C) sodium 
D) chlorine

Question 15

Although the nucleus takes up a very small portion of the volume of an atom, each particle in the nucleus is about _________ times more massive than an electron.

Accepted Answer

A) 10 
B) 100 
C) 2000 
D) 5 million 
A) 10 
B) 100 
C) 2000 
D) 5 million

Question 16

Which of the following can break down atoms?

Accepted Answer

A) chemical reactions 
B) radiation 
C) nuclear means 
D) exposure to X-rays 
A) chemical reactions 
B) radiation 
C) nuclear means 
D) exposure to X-rays

Question 17

What are the maximum number of electrons that can exist in the second energy level?

Accepted Answer

A) 2 
B) 8 
C) 10 
D) 18 
A) 2 
B) 8 
C) 10 
D) 18

Question 18

All of the elements after atomic number______ are artificial and do not exist in nature.

Accepted Answer

A) 57 
B) 89 
C) 92 
D) 104 
A) 57 
B) 89 
C) 92 
D) 104

Question 19

An "EMR blocker" blocks

Accepted Answer

A) electrons making rays. 
B) electromagnetic radiation. 
C) exceptional magnetic responses. 
D) extraneous machine relays. 
A) electrons making rays. 
B) electromagnetic radiation. 
C) exceptional magnetic responses. 
D) extraneous machine relays.

Question 20

In an atom, which particles are most likely to participate in chemical reactions?

Accepted Answer

A) the protons 
B) the core electrons 
C) the valence electrons 
D) the neutrons 
A) the protons 
B) the core electrons 
C) the valence electrons 
D) the neutrons

Write the name and symbol for the element with atomic number 51 is

If the diameter of an atom is likened to the distance between San Francisco and Washington, D.C., the size of the nucleus of this atom would be equivalent to

Yellow light has a wavelength of about 655 nm.Electromagnetic radiation whose wavelength is 455 nm would most likely belong to

A neutral atom containing 8 protons will contain how many electrons?

How many neutrons, protons and electrons are in an atom of Eu-153?

Which element is the only element to contain only one proton?

Isotopes of an element differ in the number of __________ that they contain.

Identify the number of protons and neutrons in an atom of chromium.

A neutral atom of sulfur will contain how many electrons?

Rank the following from shortest to longest wavelength: microwaves, yellow light, X-rays, gamma rays.

Electrons can be promoted from a low energy level to a higher one

The element that has 76 protons in its nucleus is called

Organize these elements from least number of protons to most: chromium, magnesium, arsenic, oxygen.

Street lamps that give off yellow light are most often filled with atoms of what element?

Although the nucleus takes up a very small portion of the volume of an atom, each particle in the nucleus is about _________ times more massive than an electron.

Which of the following can break down atoms?

What are the maximum number of electrons that can exist in the second energy level?

All of the elements after atomic number______ are artificial and do not exist in nature.

An "EMR blocker" blocks

In an atom, which particles are most likely to participate in chemical reactions?

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

Write the name and symbol for the element with atomic number 51 is

If the diameter of an atom is likened to the distance between San Francisco and Washington, D.C., the size of the nucleus of this atom would be equivalent to

Yellow light has a wavelength of about 655 nm.Electromagnetic radiation whose wavelength is 455 nm would most likely belong to

A neutral atom containing 8 protons will contain how many electrons?

How many neutrons, protons and electrons are in an atom of Eu-153?

Which element is the only element to contain only one proton?

Isotopes of an element differ in the number of __________ that they contain.

Identify the number of protons and neutrons in an atom of chromium.

A neutral atom of sulfur will contain how many electrons?

Rank the following from shortest to longest wavelength: microwaves, yellow light, X-rays, gamma rays.

Electrons can be promoted from a low energy level to a higher one

The element that has 76 protons in its nucleus is called

Organize these elements from least number of protons to most: chromium, magnesium, arsenic, oxygen.

Street lamps that give off yellow light are most often filled with atoms of what element?

Although the nucleus takes up a very small portion of the volume of an atom, each particle in the nucleus is about _________ times more massive than an electron.

Which of the following can break down atoms?

What are the maximum number of electrons that can exist in the second energy level?

All of the elements after atomic number______ are artificial and do not exist in nature.

An "EMR blocker" blocks

In an atom, which particles are most likely to participate in chemical reactions?

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