1. The First 20 Elements: Atomic Mass Quiz Click Here to Begin!Here P.S.- Make Sure you remember how many you got right!

2. What is the Atomic Mass of Nitrogen?  A: 14.07 A: 14.07  B: 14.007 B: 14.007  C: 7 C: 7  D: 14.700 D: 14.700

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5. Match the atomic mass with the correct element: 22.99  A: Argon A: Argon  B: Magnesium B: Magnesium  C: Sodium C: Sodium  D: Calcium D: Calcium

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8. Which of these pairs match?  A: Neon; 20.18 A: Neon; 20.18  B: Neon; 22.99 B: Neon; 22.99  C: Neon; 18.998 C: Neon; 18.998  D: Neon; 10 D: Neon; 10  E: Neon; 20.81 E: Neon; 20.81

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11. True or False: Hydrogen’s Atomic Mass is 1.008. If false, why?  True True  False; the atomic mass is the number of protons in an atom. False; the atomic mass is the number of protons in an atom.  False, the atomic mass is 1 since hydrogen is the first element on the periodic table. False, the atomic mass is 1 since hydrogen is the first element on the periodic table

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14. The atomic mass of Magnesium is…  A: 24.035 A: 24.035  B: 23:405 B: 23:405  C: 12 C: 12  D: 24.305 D: 24.305

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17. 35.453. This atomic mass belongs to…  Fluorine Fluorine  Chlorine Chlorine  Argon Argon  Potassium Potassium

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20. What is the atomic mass of Boron?  A: 10 A: 10  B: 5 B: 5  C: 10.35 C: 10.35  D: 10.811 D: 10.811

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23. 4.003 is the atomic mass of…  Hydrogen Hydrogen  Beryllium Beryllium  Helium Helium  Lithium Lithium

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26. The element with a symbol of Be has which atomic mass?  9.012 9.012  4 4  9.12 9.12  9.102 9.102

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29. What is the atomic mass of Silicon?  28.806 28.806  14 14  28.068 28.068  28.086 28.086

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32. Oxygen has an atomic mass of…  16 16  16 – 0.001 = atomic mass of Oxygen 16 – 0.001 = atomic mass of Oxygen  15.999 15.999  8 8

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35. 32.065 is the atomic mass of which element?  Argon Argon  Magnesium Magnesium  Sulfur Sulfur  Phosphorus Phosphorus

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38. Match the element and atomic mass correctly  Fluorine 18.999 18.998 9.1898 9 18

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41. Match the Atomic Mass and the Element correctly  26.982 Argon Silicon Aluminum Magnesium Calcium

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44. Match the Symbol with the atomic mass  Li 6.941 3.941 9.012 3

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47. Match the atomic mass with the symbol 12.011 Na Mg C B N

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50. True or False: Potassium has an atomic mass of 40.078. If false, what is the atomic mass?  True True  False; the atomic mass is 19 False; the atomic mass is 19  False; the atomic mass is 39.098 False; the atomic mass is 39.098

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53. Calcium has an atomic mass of…  40.078 40.078  20 20  42.789 42.789  40.780 40.780

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56. Phosphorus has an atomic mass of…  31.004 31.004  30.974 30.974  15 15  15.9067 15.9067

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59. The Final Question: What is the atomic mass of Fluorine?  9 9  18 18  18.998 18.998  19.998 19.998  8.998 8.998  9.998 9.998

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62. Grades 20 correct: You are on your way to becoming a chemist, right? 18 or 19 correct: Your skills are pretty good, just a tiny bit more practice needed. 16 or 17 correct: 0 to 11 correct: Your skills are a Your skills need to be greatly little rusty, but still good. Improved. 14 or 15 correct: You need some more practice. 12 or 13 correct: A good deal of practice is needed. Bonus: Who was this element named after?Who was this element named after? Bonus: Which three elements of the first twenty weren’t in Mendeleev's periodic table?Which three elements of the first twenty weren’t in Mendeleev's periodic table? Bonus: How many elements are there in the Periodic Table?How many elements are there in the Periodic Table?

63. Bonus 1  Who was this element named after? Nobelium was named after Alfred Nobel, a Swedish chemist who discovered how to make dynamite and was the namesake for the Nobel Prize.Alfred NobelNobel Prize  Also, did you know there are different versions of the periodic table?different versions of the periodic table  Click here to go back to see more.here

64. Bonus 2  Which three elements weren’t in Mendeleev's table? Helium, Neon, and Argon, which are all noble gases.Mendeleev's table  Also, did you know there are different versions of the periodic table?different versions of the periodic table  Click here to go back to see more. here

65. Bonus 3  How many elements are there? There are 118 elements in the Periodic Table.Periodic Table  Also, did you know there are different versions of the periodic table?different versions of the periodic table  Click here to go back to see more.here