Atomic Theory Flashcards
four elements, pure metals are combined
empedocles
all elements come from atoms
democritus
matter is composed of small indivisible atoms
john dalton
mostly empty space, electrons are outside the nucleus
nuclear model
ernest rutherford
nuclear model
electrons orvbit the nucleaus that have specific size and energy
planetary model
the greater the energy level, the bigger the element
planetary model niels bohr
electrons have no definite orbits, levels as clouds
erwin schrodinger quantum mech model
electrons have no definite orbits, levels as cloud
erwin schrodinger, quantum mech model
heisen berg uncertainty principle
quatum
electron charge
robert milikan
quantum theory
plank
law of definite proportions
proust
law of conservation of mass
lavosier
atomic mass
proton plus neutron
atomic number
proton
positige charge electron
proton + charge
negative
proton - charge
ions
charged particles
losses electrons, metals, more protons
cat ion (+)
gains electrons, non metals
anion (-)
bohrs model
electron configuration
bonding ability is same with
same group
