click below
click below
Normal Size Small Size show me how
S8P1.a
Distinguish between atoms and molecules.
Term | Definition |
---|---|
Atom | the smallest unit of element that maintains the properties of that element. |
Element | a substance that cannot be separated or broken down into simpler substances by chemical means. |
Nucleus | in physical science, an atom`s central region,which is made up of protons and neutrons. |
Proton | a subatomic particle that has a positive charge and that is found in the nucleus of an atom |
Neutron | a subatomic particle that has no charge and that is found in the nucleus of an atom. |
Electron | a subatomic particle that has a negative charge. |
Atomic Mass | the mass of an atom expressed in atomic mass unit. |
Chemical Symbol | a one-or two-letter code that represents an element. |