The Basics
The building blocks of matter
atoms
A subatomic particle with no charge
neutron
The smallest subatomic particles
Electrons
The scientist who discovered the proton
Ernest Rutherford
The scientist who discovered electrons
J. J. Thomson
The three things the universe is made of
1. energy
2. matter
3. intelligence
The thing at the center of an atom, made of protons and neutrons
nucleus
You can change the mass of an atom by adding or removing this
neutrons
The scientist who believed atoms were solid, indivisible spheres
John Dalton
J. J. Thomson's atomic model was called this
the Plum Pudding model
anything with mass and volume is
matter
electron
The electric charge of an atom with an equal number of protons and electrons
no charge
The philosopher who believed atoms had the same properties as the matter they made up
Democritus
Robert Millikan's experiment was called this
The Oil Drop Experiment
two or more atoms bonded together make this
molecule
The subatomic particle with a positive charge
proton
The electric charge of an atom with 2 electrons and 3 protons
positive
The scientist who put together the first Periodic Table of the Elements
Dmitri Mendeleev
J. J. Thomson used this instrument when he made his discovery
Cathode Ray Tube
A substance which is made of the same type of atoms (aka atoms with the same number of protons)
Element
Two or more different atoms bonded together make this
a compound
the electric charge of an atom with 5 electrons and 4 protons
negative
The scientist who determined the exact electric charge of electrons
Robert Millikan
Ernest Rutherford's Experiment was called this
The Gold Foil Experiment