Atoms are “uncuttable.”
Atoms are small, hard particles.
He conducted experiments in combining elements.
Atoms are made of a single material formed into different shapes and sizes.
Atoms of the same element are exactly alike.
He wanted to know why elements combine in specific proportion.
All substances are made of atoms.
Atoms of different elements are different.
His model had electrons surrounding the nucleus at a distance.
His theory of atomic structure led to the “plum-pudding” model.
He conducted the cathode-ray tube experiment.
There are small, negatively charged particles inside an atom.
Most of an atom’s mass is in the nucleus.
He conducted the gold foil experiment.
Atoms contain mostly empty space
There is a small, dense, positively charged nucleus.
Electrons travel in certain paths or energy levels.
Electrons can jump from a path in one level to a path in another level.
He discovered another particle in the nucleus of atoms.
He discovered the neutral neutron.
Electrons are found in electron clouds, not path.
Electron paths cannot be predicted.