Atoms, Molecules, & Compounds Test Review

The smallest particle of matter is ____.

• a molecule

• a proton

• a nucleus

• an atom

The smallest, negatively charged subatomic particle is the _____.

• proton

• neutron

• electron

• nucleus

The center of an atom is called the ______.

• molecule

• proton

• electron

• nucleus

The subatomic particles found in the nucleus are the ________ and ________.

• protons and neutrons

• compounds and molecules

• neutrons and electrons

• electrons and protons

The periodic table _______________.

• groups similar elements together in columns

• was designed by Dimitri Mendeleev

• arranges chemical elements in order of atomic number

• all of the above

Elements are ______________.

• one type of atom

• two or more atoms chemically bonded together

• the same as molecules

The atomic number is the same as _________.

• the atomic weight

• the number of neutrons

• the number of protons

The chemical symbol for Carbon is______.

• Ch

• C

• O

• Na

The chemical symbol for Silver is ________.

• Au

• Fe

• He

• Ag

An example of a nonmetal is __________.

• gold

• aluminum

• iron

• oxygen