1. Unit 4 Jeopardy Discovery of the Atom and its parts.

2. Democritus Who invented the term atomos/ atom?

3. Dalton Who came up with the atomic theory which incorporated the Law of Multiple Proportions, the Law of Definite Proportions, and Democritus’ atom? The person who came up with Modern atomic theory: 1.The atom is made of small indivisible pieces called atoms. 2.Each element is made of atoms which are identical. 3. Each element is different from all other elements. 4.The elements can combine in small whole number ratios.

4. J.J. Thompson Who used a cathode ray tubes in his experiments. 1.Who discovered the existance of small negatively charged particles which he called electrons. 1.These electrons proved that the ATOM WAS NOT INDIVISIBLE. 2.All elements gave off these negatively charged particles, proving that all atoms have electrons. Who showed that atoms have protons, electrons, and isotopes using his cathode ray tube experiments.

5. Ernest Rutherford Who used a gold foil in his experiments. 1.Who discovered the existance of a small positively charged core in atoms. 1.The nucleus atom was developed as a result.

6. Neils Bohr Who discovered that each element has a distinct line spectrum (like a fingerprint). 1.He developed the planetary model of the atom, arguing that the electrons orbited the nucleus, like the planets orbit the sun. 2.The line spectrum represent the transition from higher energy to lower energy when an electron has been excited.

7. Schrödinger Who came up with the mathematical model of the electrons in the atom called quantum mechanics. 1.Who calculated the probability functions which describe the “orbitals” in an atom.

8. s,p,d,f What are the four shapes which describe the shapes of the orbitals?

9. Holds only two electrons in the fourth energy level What is a 4s orbital?

10. Holds only two electrons in the sixth energy level What is a 6s orbital?

11. Holds only six electrons in the fourth energy level What is a 4p orbital?

12. Holds only ten electrons in the fourth energy level What is a 4d orbital?

13. Holds a maximum of 14 electrons in the fourth energy level What is a 4f orbital?

14. There are seven orbitals in this sublevel. What is an f orbital?

15. There are three orbitals in this sublevel. What is an p orbital?

16. There are five orbitals in this sublevel. What is an d orbital?

17. There is only one orbital in this sublevel. What is an s orbital?

18. 1s 1. What is the electron configuration for hydrogen?

19. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 1. What is the electron configuration for Cesium (Cs)?

20. [Kr]6s 1. What is the shorthand electron configuration for Cesium (Cs)?

21. [Kr]6s 2 4f 14 5d 4. What is the shorthand electron configuration for Tungsten (W)? –Tungsten is used for the filament of light bulbs.

22. What is (84 – 36 =) 48 neutrons? Kr 84 36 has 36 protons, and 84 nuclear particles but how many neutrons?

23. What is (84 – 36 =) 48 neutrons? What is the same number of protons and electrons (36)? Kr 84 36 has 36 protons, and 84 nuclear particles but how many neutrons and electrons?

24. What is an s orbital picture from Prentice Hall publishers

25. What are p orbitals picture adapted from Prentice Hall publishers

26. What is an the orbital method of electron configuration? picture from Prentice Hall publishers

27. What causes the electrons to give off more than one color in an excited atom? picture from Prentice Hall publishers

28. What is a memory device to remember the order of filling of electrons in the electron configuration? picture from Prentice Hall publishers

29. How does the principal quantum number explain where it is possible to find electrons? picture from Prentice Hall publishers

30. How is energy (hد) emitted from a spectrum tube (or during a flame test)?

31. What parts of the electron configuration of germanium are available for chemical reactions?

32. What is the electromagnetic spectrum?

33. What parts of the chlorine atom are available for chemical reactions?