Module 16 Test Review

Which of the following is the correct chemical symbol for carbon?

• Ca

• C

• Cn

• Car

Which of these statements is false?

• Atoms are larger than protons.

• Molecules are made up of atoms.

• Protons are smaller than quarks.

• Electrons are smaller than protons.

Tags

NGSS.MS-PS1-1

In which of the following states is nitrogen found at room temperature?

• metal

• gas

• liquid

• solid

The element nickel has five naturally occurring isotopes. Which of the following describes the relationship of these isotopes?

• same mass, different atomic number

• different mass, different atomic number

• same mass, same atomic number

• different mass, same atomic number

Protons have ____

• positive charge

• negative charge

• no charge

Neutrons have ____

• positive charge

• negative charge

• no charge

Electrons have ____

• positive charge

• negative charge

• no charge

Tags

NGSS.MS-PS2-3

Quarks can be produced by bombarding protons with protons.

• True

• False

Suppose that you have just discovered a new element and have named it “neptunite.” While studying your new element you find that it has two isotopes that are present in equal amounts in nature. These are neptunite-220 and neptunite-250. What is the average atomic mass of your new element?

• 235 amu

• 230 amu

• 240 amu

• 245 amu

How many neutrons does lead-207 have?

• 125

• 120

• 130

• 135