History of the Atom

1. the name of the model that shows an atom with mostly empty space where the positive and negative are scattered?
4. the number of Postulates that Dalton had
7. neutral part of the atom
10. who was the first person to say the "two elements cannot be destroyed"
12. a type of radiation that comes from a radiation source
13. used in experiments by JJ Thomson
14. Democritus theory said that this is made of small pointy atoms
16. the positive center of Rutherford atom
17. the charge of beta rays
18. negative particle that is part of the atom
19. One of Demcritus theories on the atom (starts with ind....)

2. Democritus theory said that this is made of large round atoms
3. who proposed that atoms are the basic building blocks of matter
5. a scientist from New Zealand who helped to disprove the plum pudding of the atom
6. propose that electrons ae found orbits or energy levels
8. the Greek word that means indivisible
9. who said that the atom is composed of two elements
11. a French physicist who is credited with discovering radiation with Marie and Pierre Curie
12. Rutherford's experiment if called
14. what is the Shape of Democitus model of the atom
15. positive particle that is part of the atom