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PeriodicTableLesson
Question | Answer |
---|---|
Atomic Number | The number of protons in the nucleus of an atom. |
Particle Mass | The mass of protons, neutrons, electrons. |
Proton | Positively charged particles in an atom. |
Neutron | Neutrally charged particles in an atom |
Electron | Negatively charged particles in an atom. |
Valence Electron | The electrons that are at the highest energy level in an atom and are involved in chemical bonding. |
Atomic Mass | Mass of an atom of a given element. |
Ionic Bond | One atom takes electrons from the other. Between metals and nonmetals. |
Covalent Bonds | Two atoms share electrons between nonmetals and metals. |
Group | a column in the periodic table of the chemical elements |
Period | The horizontal rows of the periodic table |