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Atoms
Term | Definition |
---|---|
Atom | Smallest particle that makes up matter |
Nucleus | The core and center of an atom |
Protons | Positively charged particles found tightly packed in the nucleus |
Neutrons | Particles that have a neutral charge |
Electrons | Particles that have a negative charge |
Atomic Mass | The sum of the protons and neutrons |
Isotopes | Elements that have the same number of protons but different number of neutrons |
Valence Electrons | The electrons that are on the last energy level of an electron cloud |
Ion | An atom with a charge |