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sc 15 vocab words

TermDefinition
model a representation to show the structure of something
atom the smallest unit of an element.
nucleus the central region
electron negatively charged subatomic particle
atomic number the number of protons in the nucleus of an atom. it is the same for all atoms of an element
atomic, nuclear, chemical symbol A chemical symbol is a 1-, 2-, or 3-letter internationally agreed code for a chemical element, usually derived from the name of the element, often in Latin.
subatomic particles a particle smaller than an atom
molecule the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
Lewis structures are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.
Bohr model The simplest modern picture of the structure of the atom
electron shell The electrons in the outermost occupied shell that determine the chemical properties of the atom
valence electron the electron that is found in the outermost she of an atom and that determines the atoms chemical properties
matter anything that occupies space
proton positively charged subatomic particle that is found in the nucleus of an atom
neutron negatively charged subatomic particle that is found in the nucleus of an atom
Created by: dylanblackett