Chapter 2 Review

Anything that takes up space and has mass is called a(an)

• matter

• cell

• molecule

• atom

• compound

A substance consisting of two or more different elements combined in a fixed ratio is called a(n)

• matter

• cell

• molecule

• atom

• compound

Elements that are necessary for an organism to live a healthy life and reproduce

• Carbon

• Hydrogen

• Nitrogen

• Oxygen

• All of the above

The smallest unit of matter that still retains the properties of an element

• Proton

• Neutron

• Electron

• Cell

• Atom

A substance that cannot be broken down to other substances by chemical reactions

• matter

• cell

• molecule

• element

• compound

Subatomic particles consist of

• protons

• neutrons

• electrons

• cells

• elements

The _________ consists of the number of protons in an atom

• atomic number

• mass number

• nucleus

• cytoplasm

• none of the above

The _________ consists of the number of protons and neutrons

• atomic number

• mass number

• atom

• cytoplasm

• none of the above

____________ have more neutrons that they other atoms of the same element

• Isotopes

• Compounds

• Molecules

• Atoms

• Nuclei

Which subatomic particle gives each element its chemical properties

• Electrons

• Protons

• Neutrons

• All of the above

• None of the above