Atoms Flashcards
True or False: All compounds are molecules
True
List the three sub-atomic particles
proton, neutron, electron
Two or more atoms that are chemically bonded together
Molecule
The two sub-atomic particles found in the nucleus of an atom
proton, neutron
The two types of pure substances
compounds and elements
Molecules that exist of exactly two atoms
Diatomic molecules
The elements that exist as diatomic molecules
hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, iodine
A pure substance formed by two or more different atoms bonded together in a fixed ratio
compound
A chemical reaction in which a compound is broken down into simpler compounds or elements
Decomposition reaction
A substance made up of only one type of particle
Pure substance
Two or more different substances that are mixed together. The substances can be separated by physical means.
Mixture
