1) What class is helium on the periodic table? a) Noble Gases b) Lanthanides c) Alkali Metals d) Actinides e) Transition Metals f) Reactive Nonmetals 2) True or false? Hydrogen is number 1 on the periodic table. a) True b) False 3) What is the atomic mass for Krypton? a) 83.798 b) 63.421 c) 91.537 d) 24.667 4) What number is Zinc on the periodic table? a) 30 b) 27 c) 53 d) 12 5) What class has the most elements on the periodic table? a) Transition Metals b) Lanthanides c) Alkaline 6) What is the atomic mass for Oxygen? a) 42.9 b) 12.542 c) 15.999 d) 124.74 7) Which classes have the least elements? a) Metalloids b) Reactive Nonmetals c) Unknown Properties d) Alkaline Earth Metals e) Actinides f) Noble Gases 8) What is the name of the element that is number 103 on the periodic table? a) Iron b) Titanium c) Lawrencium d) Dubnium 9) What is the atomic mass for Tungsten? a) 34.643 b) 54.85 c) 24.975 d) 183.84 e) 275.96 f) 421.53 10) What element has an atomic mass of 140.91? a) Thorium b) Vanadium c) Lanthanides d) Praseodymium 11) What is the atomic mass for Uranium? a) 432.4 b) 52.642 c) 238.03 d) 32.463 12) Which two make up most of the Earth's atmosphere? a) Potassium b) Helium c) Hydrogen d) Titanium e) Radium f) Thorium 13) What class is Thallium on the periodic table? a) Actinides b) Post-transition metals c) Noble Gases d) Unknown Properties 14) What number is Neptunium on the periodic table? a) 102 b) 23 c) 64 d) 74 e) 93 f) 104 15) What is the atomic mass for Radon? a) 231 b) 325 c) 238 d) 222 16) What class is Magnesium? a) Noble gases b) Metalloids c) Unknown properties d) Alkaline earth metals e) Transition metals f) Reactive nonmetals

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