2. Created by Terri Street Copyright, 2000

3.  1,000,0001,000,000  500,000500,000  250,000250,000  125,000125,000  64,00064,000  32,00032,000  16,00016,000  8,0008,000  4,0004,000  2,0002,000  1,0001,000  500500  300300  200200  100100

4. Click to return to question, Cont-P to switch to the pen, cross out two incorrect answers, then Cont-A to switch back to pointer.

5. Click to return to the question and poll the class

6. Click on link to Ask Jeeves, or click on this oval to return to question and ask a friend

7.  A. atom A. atom  C. cell C. cell  B. molecule B. molecule  D. compound D. compound What is the smallest unit into which matter can be divided?

8. Back to Board  A. atom

9.  A. 14 A. 14  C. 7 C. 7  B. 16 B. 16  D. 20 D. 20 If Carbon has 7 protons, how many electrons does it have?

10. Back to Board C. 7

11.  A. electron number A. electron number  C. proton number C. proton number  B. atomic number B. atomic number  D. AMU D. AMU Mass number - _____ = number of neutrons.

12. Back to Board B. Atomic number

13.  A. protons and neutrons A. protons and neutrons  C. protons and AMU(s) C. protons and AMU(s)  B. neutrons and electrons B. neutrons and electrons  D. quarks and electrons D. quarks and electrons What two thing are grouped together in the nucleus?

14. Back to Board A. Protons and neutrons

15.  A. atomic quark A. atomic quark  C. atomic particle C. atomic particle  B. atomic mass B. atomic mass  D. atomic number D. atomic number The ______ equals the number of protons in an atom.

16. Back to Board D. Atomic number

17.  A. 1 AMU A. 1 AMU  C. 7 AMU C. 7 AMU  B. 14 AMU B. 14 AMU  D. 16 AMU D. 16 AMU 3 protons + 4 neutrons = a mass number of what?

18. Back to Board C. 7 AMU

19.  A. compounds A. compounds  C. quarks C. quarks  B. isotopes B. isotopes  D. atoms D. atoms Atoms that have the same number of protons, but have different numbers of neutrons are called _______.

20. Back to Board B. isotopes

21.  A. atoms A. atoms  C. matter C. matter  B. molecules B. molecules  D. compounds D. compounds ____ is anything that takes up mass and takes up space.

22. Back to Board C. matter

23.  A. protons, quarks, clouds A. protons, quarks, clouds  D. protons, neutrons & electrons D. protons, neutrons & electrons What are the three main particles in an atom?  C. protons, electrons, quarks C. protons, electrons, quarks  B. protons, AMUs & tacos B. protons, AMUs & tacos

24. Back to Board D. Protons, neutrons, electrons

25. What is the charge of a proton?  A. negative A. negative  C. neutral C. neutral  D. free D. free  B. positive B. positive

26. Back to Board B. positive

27.  A. negative A. negative What is the charge of an electron?  C. free C. free  B. positive B. positive  D. neutral D. neutral

28. Back to Board A. negative

29.  B. 18 B. 18 If Argon has 18 protons, what is its atomic number?  A. 230 A. 230  C. 9 C. 9  D. 19 D. 19

30. Back to Board B. 18

31.  C. 22 C. 22 If Titanium has 22 electrons, how many protons does it have?  A. 32 A. 32  B. 12 B. 12  D. 11 D. 11

32. Back to Board C. 22

33.  D. proton D. proton What has more mass?  A. particle A. particle  C. electron C. electron  B. quark B. quark

34. Back to Board D. Proton

35.  A. 7 protons, 8 neutrons A. 7 protons, 8 neutrons and 7 electrons The atomic number of the isotope nitrogen -15 is 7. How many protons, neutrons and electrons make up an atom of nitrogen -15?  B. 7 protons, 8 electrons B. 7 protons, 8 electrons and 0 neutrons  D. 7 protons, 7 neutrons D. 7 protons, 7 neutrons And 9 electrons  C. 8 protons, 7 neutrons C. 8 protons, 7 neutrons and 7 electrons

36. A. 1,000,000 Answer

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