Atoms Basics Review

Match

Match the following

• Protons

• Neutrons

• Electrons

Positive

Neutral

Negative

• Positive

• Neutral

• Negative

Drag and Drop

The center of an atom is called the ​

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.

​ ​

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and ​

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are found in the nucleus.

​

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rotate around the nucleus.

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nucleus

protons

neutrons

electrons

Drag and Drop

Atomic Number represents the number of ​

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in the ​

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of an ​

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.

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protons

nucleus

atom

electrons

neutrons

Drag and Drop

In a neutral atom the number of ​

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equals the number of ​

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protons

electrons

neutrons

atoms

Drag and Drop

The atomic mass is the number of ​

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plus the number of ​

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protons

neutrons

electrons

ions

isotopes

Multiple Choice

The average atomic mass is:

• the mass of the most common type of atom (isotope) of that element

• the average mass of all the different atoms of that element

• the number of protons plus neutrons in one atom

Multiple Choice

This image shows the nuclei of the 3 most common isotopes of carbon. Based on this information, what can you say about the atomic mass of carbon?

• The atomic mass will be exactly 12.

• The atomic mass will be slightly greater than 12.

• The atomic mass will be 13.

• The atomic mass will be between 13 and 14.

Multiple Choice

This atom has 1 proton in its nucleus:

Multiple Choice

This atom has 3 proton in its nucleus:

Multiple Choice

This atom has 8 electrons surrounding its nucleus:

Multiple Choice

This atom has 12 electrons surrounding its nucleus:

Multiple Choice

This atom often has 4 neutrons in its nucleus.

Multiple Choice

This atom often has 5 neutrons in its nucleus.

Multiple Choice

The atom you are looking for has 3 more electrons than helium:

Multiple Choice

What is the atomic mass of the atom pictured? 

• 11

• 12

• 22

• 23

Multiple Choice

What is the atomic number of the atom pictured? 

• 11

• 12

• 22

• 23

Multiple Choice

What is the number of atomic number for this element?

• 14

• 7

• 15

• 18

Multiple Choice

What is the number of protons that the element in this image contain?

• 14

• 7

• 15

• 18

Multiple Choice

What is the atomic mass that the element in this image contain?

• 14

• 7

• 15

• 18

Multiple Choice

What is the mass number of this atom?

• 1

• 3

• 4

• 7

Multiple Choice

What is the number of protons (atomic number) for this element?

• 10

• 20

• 20.180

• 30

Multiple Choice

What is the number of protons (atomic number) for this element?

• 167

• 167.26

• 68

• 28