First and last time:
1. The concept that matter is composed of tiny, discrete particles is generally attributed to the 1) Greeks 2) Romans 3) English 4) Germans
2. The first subatomic particle discovered was the 1) proton 2) neutron 3) electron 4) photon
3. According to the law of conservation of mass, if the products of a reaction have a mass of 64.0 g, then the total mass of the reactants 1) must be less than 64.0 g 2) must be equal to 64.0g 3) must be more than 64.0g 4) is not related to the mass of the products
4. The gold-foil experiment led scientists to conclude that an atom's 1) positive charge is evenly distributed throughout its volume 2) negative charge is mainly concentrated in its nucleus 3) mass is evenly distributed throughout its volume 4) volume is mainly unoccupied
5. The model of the atom that pictured the atom with electrons stuck randomly throughout the mass of the atom was called the 1) cannonball model 2) plum pudding model 3) planetary model 4) wave-mechanical model
6. After bombarding a gold foil sheet with alpha particles, scientists concluded that atoms mainly consist of 1) electrons 2) empty space 3) protons 4) neutrons.
7. Experimental evidence indicates that the nucleus of an atom 1) contains most of the mass of the atom 2) contains a small percentage of the mass of the atom 3) has no charge 4) has a negative charge
8. Dalton's atomic theory states that 1) all atoms of an element are positively charged 2) different elements can have the same mass 3) atoms of a given element must be identical 4) all the atoms in a compound are identical