1. Jeopardy Atoms Nature of Matter Radio- activity Periodic Table
Phases of
Matter
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Final Jeopardy

2. $100 Question from Atoms
What are the numbers of protons, neutrons, and electrons in an isotope of titanium with a mass number of 50?
22 p, 22 n, 28 e
28 p, 22 n, 22 e
50 p, 22 n, 50 e
22 p, 28 n, 22 e
Virginia 07

3. $100 Answer from Atoms
22 p, 28 n, 22 e

4. $200 Question from Atoms
A. 88
B. 132
C. 220
D. 308
Virginia 07

5. $200 Answer from Atoms 88

6. $300 Question from Atoms What are shared in covalent bonds? A. Cations
B. Protons
C. Electrons
D. Anions
Virginia 07

7. $300 Answer from Atoms
Electrons

8. $400 Question from Atoms
When compared to sulfur-32, sulfur-34 has more —
Virginia 07

9. $400 Answer from Atoms
neutrons

10. $500 Question from Atoms Which compound has a covalent bond? CaI 2 KBr
NaCl NO
Virginia 07

11. $500 Answer from Atoms NO

12. $100 Question from Nature of Matter
The picture shows a cube that contains 20 mL of a solution. The solution has a mass of 40 grams. What is
the density in g/mL of this solution?
Texas 06

13. $100 Answer from Nature of Matter
2g/ml

14. $200 Question from Nature of Matter
Which of the following chemical
equations is balanced correctly? .
Mass 07

15. $200 Answer from Nature of Matter

16. $300 Question from Nature of Matter
The figure below represents a reaction.
What type of reaction is shown?
Mass 07

17. $300 Answer from Nature of Matter
synthesis

18. $400 Question from Nature of Matter
Under certain conditions, solid magnesium
(Mg) and solid sulfur (S) can combine and
form magnesium sulfide (MgS). The
Equation for thisreaction is shown below.
Mg(s) +S(s) → MgS(s)
What is the oxidation
number for Mg in MgS in this reaction?

19. $400 Answer from Nature of Matter
+ 2
Mass 07

20. $500 Question from Nature of Matter
When the equation is correctly balanced, the coefficient of H 2 SO 4 is —
Virginia 07

21. $500 Answer from Nature of Matter3

22. $100 Question from Radiation
The three main types of nuclear radiation
are alpha, beta, and gamma. List the three types of radiation from highest penetrating power to lowest penetrating power?
Mass 07

23. $100 Answer from Radiation
gamma, beta, alpha

24. $200 Question from Radiation
What is a problem commonly associated with nuclear power facilities?
A. A small quantity of energy is produced.
B. Reaction products contribute to acid rain.
C. It is impossible to control nuclear fission.
D. It is difficult to dispose of wastes.
New York 08

25. $200 Answer from Radiation
It is difficult to dispose of wastes.

26. $300 Question from Radiation
One benefit of nuclear fission reactions is
A. nuclear reactor meltdowns
B. storage of waste materials
C. biological exposure
D. production of energy
New York 08

27. $300 Answer from Radiation
production of energy

28. $400 Question from Radiation
The final elements produced by radioactive decay differ from the original radioactive elements because the nuclei of the final elements are always
A. more stable.
B. increased in mass.
C. half as radioactive.
D. positively charged.
Mass 06

29. $400 Answer from Radiation
more stable

30. $500 Question from Radiation
An original sample of the radioisotope
fluorine-21 had a mass of 80.0 milligrams. Only 20.0 milligrams of this original sample remain unchanged after 8.32 seconds. What is the half-life of fluorine-21?
A s
2.08 s
4.16s
D s
New York 09

31. $500 Answer from Radiation

32. $100 Question from Periodic Table
What can be determined if only the atomic number of an atom is known?
A. the total number of neutrons in the atom, only
B. the total number of protons in the atom, only
the total number of protons and the total
number of neutrons in the atom
number of electrons in the atom
New York 09

33. $100 Answer from Periodic Table
The total number of protons and the total number of electrons in the atom

34. $200 Question from Periodic Table
How many valence electrons are there in the elements in family 16 of the periodic table?
Mass 07

35. $200 Answer from Periodic Table
They have six valence electrons

36. $300 Question from Periodic Table
Which element has both metallic and nonmetallic properties?
Rb (3) Si Rn Si
D. Sr
New York 07

37. $300 Answer from Periodic TableSi

38. $400 Question from Periodic Table
The label below contains information about an unknown metal.
UNKNOWN METAL M
Most common salts
MP3
M 2 O3
MCl 3
How many valence electrons does the unknown metal have?
Mass 06

39. $400 Answer from Periodic Table3

40. $500 Question from Periodic Table
A particle has 36 electrons,
49 neutrons, and 38 protons.
What type of particle is it and what is
its charge?
Mass 06

41. $500 Answer from Periodic Table
an ion with a charge of + 2
(a cation)

42. $100 Question from Phases of Matter
Which of these statements describes
what happens to the molecules of a solid
as the temperature is lowered to absolute
zero?
A They begin to take up more space.
B They become farther apart.
C Their kinetic energy gradually increases to a maximum.
D Their motion gradually decreases and eventually stops.
Virginia 07

43. $100 Answer from Phases of Matter
Their motion gradually decreases and
eventually stops.

44. $200 Question from Phases of Matter
Which of these best describes sublimation?
A. A solid changing to a liquid phase
B. A solid changing to a gaseous phase
C. A gas filling the space in its container
D. A liquid taking the shape of its container
Virginia 07

45. $200 Answer from Phases of Matter
A solid changing to a gaseous phase

46. $300 Question from Phases of Matter
Which of the following is not true of a sample of gas as it is heated in a rigid, closed container?
A. The pressure of the molecules increases.
B. The average speed of the molecules increases.
C. The average distance between molecules increases.
D. The number of collisions between molecules increases.
Virginia 07

47. $300 Answer from Phases of Matter
The average distance between molecules increases.

48. $400 Question from Phases of Matter
The illustration below shows a hot-air balloon. The pilot can
change the altitude of the hot-air balloon by changing the
temperature of the gas inside the balloon. When the gas is heated, the balloon rises.
Which of the following best explains this phenomenon?
A. Heating the gas reduces its pressure.
B. Heating the gas decreases its density.
C. Heating the gas decreases its molecular motion.
D. Heating the gas reduces the frequency of the gas molecules’ collisions.
Mass 06

49. $400 Answer from Phases of Matter
Heating the gas decreases its density.

50. $500 Question from Phases of Matter
The relationship between the pressure and volume of a gas at constant temperature is
A. numerically equivalent
B. inversely proportional
C. positively correlated
D. totally unrelated
Virginia 05

51. $500 Answer from Phases of Matter
inversely proportional

52. Final Jeopardy Which two elements have the most similar
chemical properties? Justify your answer.
A. Be and Mg
Ca and Br
Cl and Ar
D. Na and P

53. Final Jeopardy Answer
Be and Mg have the most similar properties. Each is a member of Group 2 (the Alkaline Earth Metals Group) and has 2 valence electrons.
The remaining choices are in different families and have different numbers of valence electrons
Ca (2 )and Br (7) valence electrons
Cl (7) and Ar (8) valence electrons
Na (1) and P (5) valence electrons