Atomic Crossword

2. His was the first atomic model based on experimentation
5. Each element has a unique line spectrum because no two elements have the same arrangement of these
8. de Broglie proposed that electrons act as these
9. Of the three main subatomic particles, this one has the smallest mass
11. The neutron was difficult to detect because it lacks this
12. Bohr’s model is called the _____ model
14. Atoms of different elements have different _____
15. Experiments with these led to the discovery of the electron
17. He discovered the neutron
19. This atomic part was discovered using the gold foil experiment
20. General region of space where the location of an electron is most probable

1. His uncertainty principle states that it’s impossible to know both the momentum and position of an electron at the same time
3. Means “indivisible”
4. This particle contributes to an atom’s mass but not its charge
5. Bohr explained that line spectra suggested electrons orbited on different _____ levels
6. His model is called the “Plum Pudding” model
7. Bohr did this type of experimentation
10. This law refers to the set mass ratios between elements in a compound
13. Rutherford’s model relied on experimentation with this
16. His model included the discovery of the proton
18. He was the first to propose the idea of a smallest particle of matter, but his idea was rejected