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Atoms/Periodic Table
8th grade atoms study list
Term | Definition |
---|---|
Protons | positive charge of an atom ; in the nucleus |
Electrons | negative charge of an atom; electron cloud |
Neutrons | have no charge; in the nucelus |
Valence electrons | The outer most shell of electrons; just remove the one from the group number to find it. |
Atomic number | Same as the proton number or the number of protons in an atom |
Element' s mass | Add the number of electrons and neutrons |
Calculating the number of neutrons | Subtract the atom number from atomic mass |
Element square (information) | Element name, abbreviation, atomic number, mass |