Who did not believe that empty space exists?
Aristotle
Who came up with the word atomos
Democritus
who idea was similar to Democritus?
John Dalton
Smallest piece of an element
Atom
a particle with one negative charge
electron
who experimented with gold foil?
Rutherford
This is where most of an atom's mass and positive charge is concentrated
Nucleus
a particle that has one positive charge
proton
a neutral particle
neutron
the area around an atomic nucleus where an electron will most likely be found
electron cloud
Rutherford experimented with this
gold foil
who proposed that electrons move in a circular orbit
bohr
fractional charges of neutrons and protons
quarks
who experiment was named the cathode ray tube experiment
Thomson
what makes an atom unique
atomic number
one classical element
air
element with a different number of neutrons
isotope
a table of chemical elements
periodic table
an air like fluid which expands freely
gas
which elements number is 4
beryllium