GHI4 Chemistry 1

2. A Danish physicist who proposed a model of the atom where electrons have particular orbits they travel in
4. John __________ was the first scientist to return to the idea of the atom after Democritus first proposed it
7. Lavoisier identified this element as the cause of respiration and combustion
10. Father of Modern Chemistry
12. ______________ is the study of matter and the changes it undergoes.
14. radiated energy studied by Marie Curie
15. Marie ________ studied pitchblend and discovered Radium
17. A subatomic particle with a negative charge
18. this was the lightest Greek element and rested on top
19. a testable prediction

1. a natural philosopher who thought the cosmos were perfect and that atoms were perfect geometric "platonicsolids"
3. scientist that concluded there were three parts of atom: alpha, beta, and gamma particles
5. Greek philosopher who first theorized the atom
6. study relating to the transformation of substances
8. ________________is everything that occupies space and has mass.
9. JJ Thomson was a British physicist who theorized the Plum ______ Model of the atom
11. The _________________ is the building block of matter.
13. The _________ Method is a method of experimentation that results in reliable conclusions
16. this ancient Greek element was the heaviest and therefore at the center of the universe