Structure of Matter Final Test, Part A

What is the smallest unit of an element that retains its chemical properties?

• molecule

• compound

• ion

• atom

Which state of matter has a definite shape and volume?

• liquid

• gas

• solid

• plasma

What are the three subatomic particles that make up an atom?

• protons, neutrons, and positrons

• protons, electrons, and photons

• protons, neutrons, and electrons

• protons, neutrons, and quarks

What is the symbol for the element Oxygen?

• O

• N

• C

• H

What is the term for a substance that is made up of two or more atoms chemically bonded together?

• compound

• ion

• element

• molecule

Which state of matter has a definite volume but takes the shape of its container?

• solid

• gas

• plasma

• liquid

What is the number of protons in the nucleus of an atom called?

• nuclear charge

• electron number

• atomic mass

• atomic number

What is the term for a substance that cannot be broken down into simpler substances by chemical means?

• atom

• compound

• element

• mixture

What is the symbol for the element Carbon?

• Cu

• Co

• Ca

• C

Which state of matter has neither a definite shape nor a definite volume?

• plasma

• solid

• gas

• liquid