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Atoms
Term | Definition |
---|---|
Valence Electron | Electron(s) located in the outer energy level (electron shell) |
Atom | smallest particle of an element that maintains the properties of that element |
Electron | A negatively charged particle in the electron cloud surrounding the atomic nucleus |
Electron cloud | The negatively charged space containing electrons that surrounds the atomic nucleus |
Neutron | A neutral Particle with no electrical charge within the atomic nucleus |
Subatomic Particle | A particle smaller than an atom, such as a proton, neutron, or electron |
Periodic Table | A conceptual model in which the elements are organized to their properties |
Atomic Number | The number of protons in the nucleus of an atom; used to determine an elements position in the periodic table |
Proton | A positively charged particle within the atomic nucleus; used to identify an element |
Nucleus | The positively charged center of an atom containing the protons and neutrons |
Atomic Mass | The Average mass of one atom of an element. |
Electrical Charge | A property of a subatomic particle |
The Law of Conservation of Mass | -matter neither be created nor destroyed. -The mass of reactants = the mass of products |