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Physical science

BEST 2014 PHYSICAL SCIENCE CARDS

TermDefinition
Model A demonstration used to show the structure of an object
Atom The smallest unit of an element
Necluse The central region of an atom
Proton Positively charged subatomic particles
Neutron A neutral subatomic particle with no charge
Electron A negatively charged subatomic particle
Atomic number The number of protons in an element
Atomic symbol The letter that stands for an element
Subatomic Particle Particles smaller than atoms
Molecules Two or more atoms joined
Lewis structure A diagram that shows the bonding between atoms of a molecule
Bohr structure A diagram that shows the atom as a small,positively charged nucleus surrounded by electrons
Electron shell Depicted as an orbit followed by electrons around an atoms nucleus
Valence electron An electron is an electron that is associated with an atom and that can participate in the formation of a chemical bond
Matter Anything that occupies space
Created by: sbrian