Chapter 4 Test - Physical Science

The smallest particle of an element that retains the properties of that element

• atom

• proton

• neutron

• molecule

a positively charged subatomic particle

• proton

• neutron

• electron

a negatively charged subatomic particle

• electron

• proton

• neutron

a subatomic particle with no charge

• neutron

• proton

• electron

the central part of the atom, containing protons and neutrons

• nucleus

• electron cloud

• neutron cloud

atoms with the same number of protons, but different numbers of neutrons

• isotopes

• molecules

• compounds

the total number of protons and neutrons in the nucleus of an atom

• atomic number

• atomic mass

• isotopic mass

the number of protons in the nucleus of the atom

• atomic number

• atomic mass

• isotopic mass

Use the periodic table to determine the number of electrons in Lithium (Li) - top number.

Use the periodic table to determine the number of protons in barium (Ba) - top number.