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Vocabulary
WORD | DEFINITION |
---|---|
Model | A drawing or representation for an object or system |
Atom | A particle that creates matter |
Nucleus | A positively charged particle in the core of an atom |
Proton | A particle that's part of an atom's nucleus that has a positive charge |
Neutron | A particle that's part of an atom's nucleus that is neutrally charged |
Electron | A particle that is part of an atom that has a negative charge |
Atomic Number | The number of protons in the nucleus of an atom |
Atomic Symbol | The atoms of all the elements that are represented |
Subatomic Particle | Particles that are smaller than atoms and are either elementary or composite particles |
Molecule | A particle that is composed of two or more atoms |
Lewis Structures | A diagram that show the bonding between the atoms and the electrons in a molecule |
Bohr Model | The model that depicts the atom as a small, positively charged nucleus surrounded by electrons |
Electron Shell | An orbit followed by electrons around an atom's nucleus |
Valence Electron | An electron that is associated with an atom |
Matter | anything and everything that takes up space |
Nuclear Symbol | Consists of the symbol and atomic number of the element, and the mass number of the specific isotope |
Chemical Symbol | A notation of one or two letters representing the chemical element |