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Elem. Chem/Phys 3
Apologia Chemistry Physics Module 3 Vocabulary Cards
Term | Definition |
---|---|
Atom | Smallest particle of an element |
Naturally occurring elements | The 94 different elements that God created. |
Synthetic elements | Man-made elements |
Compound | Two different elements combined |
Alchemists | Individual who mix lots of stuff together to make new things. |
Charge | The strange occurrence when some atoms want to join together and other atoms want to move away from each other. |
Protons | Positively charged particles |
Electrons | Negatively charged particles |
Atomic Number | The number of protons an atom has |
Nucleus | The center of an atom that contains protons and neutrons |
Necleons | Protons and neutrons together |
Mass number | The number of nucleons an atom has |
Energy Level | Each electron is assigned to a particular energy level called either orbitals or electron shells |
Valence Electrons | The electrons in the outer shell |
Isotopes | Atoms with a different number |
Anion | If the atom has gained electrons |
Cation | If an atom loses electrons |