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PCC CH 100 - Elements and Compounds

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Ch100: Fundamentals for Chemistry 1 Ch 3: Elements & Compounds Section 1 1. List the elements that occur as diatomic molecules in their elemental forms and their corresponding formulas? 2. Name the three main categories of elements and describe their properties: 3. Elements that exhibit similar chemical properties are arranged into ____________________. 4. Name the 5 “primary” groups in the periodic table and their corresponding column(s). Have you ever heard of these names in everyday experience? If so, where? 5. What is an ion? 6. Name the 2 types of ions. 7. How are the 2 ion types distinguished?Ch100: Fundamentals for Chemistry 2 Ch 3: Elements & Compounds 8. For the following compounds, indicate the # of each element per 1 molecule: a) KCl b) MgCl2 c) CCl4 d) N2O3 e) Ag2S f) PbO g) NH4Cl h) NaNO3 i) Ca3(PO4)2 j) Fe2(SO4)3 k) (NH4)2SO4 l) Ba(OH)2Ch100: Fundamentals for Chemistry 3 Ch 3: Elements & Compounds The Periodic Table of Elements 1 18 1 1 H 1.008 2 13 14 15 16 17 2 He 4.003 2 3 Li 6.941 4 Be 9.012 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F 19.00 10 Ne 20.18 3 11 Na 22.99 12 Mg 24.31 3 4 5 6 7 8 9 10 11 12 13 Al 26.98 14 Si 28.09 15 P 30.97 16 S 32.06 17 Cl 35.45 18 Ar 39.95 4 19 K 39.10 20 Ca 40.08 21 Sc 44.96 22 Ti 47.88 23 V 50.94 24 Cr 52.00 25 Mn 54.94 26 Fe 55.85 27 Co 58.93 28 Ni 58.70 29 Cu 63.55 30 Zn 65.38 31 Ga 69.72 32 Ge 72.59 33 As 74.92 34 Se 78.96 35 Br 79.90 36 Kr 83.80 5 37 Rb 85.47 38 Sr 87.62 39 Y 88.91 40 Zr 91.22 41 Nb 92.91 42 Mo 95.94 43 Tc (98) 44 Ru 101.1 45 Rh 102.9 46 Pd 106.4 47 Ag 107.9 48 Cd 112.4 49 In 114.8 50 Sn 118.7 51 Sb 121.8 52 Te 127.6 53 I 126.9 54 Xe 131.3 6 55 Cs 132.9 56 Ba 137.3 57 La 138.9 72 Hf 178.5 73 Ta 180.9 74 W 183.9 75 Re 186.2 76 Os 190.2 77 Ir 192.2 78 Pt 195.1 79 Au 197.0 80 Hg 200.6 81 Tl 204.4 82 Pb 207.2 83 Bi 209.0 84 Po (209) 85 At (210) 86 Rn (222) 7 87 Fr (223) 88 Ra 226.0 89 Ac 227.0 104 Rf (261) 105 Db (262) 106 Sg (263) 107 Bh (262) 108 Hs (265) 109 Mt (266) 110 Unn (269) 111 Uuu (272) 112 Uub (277) 113 114 Uuq (289) 115 116 Uuh (289) 117 118 Uuo (293) Lanthanides 58 Ce 140.1 59 Pr 140.9 60 Nd 144.2 61 Pm (145) 62 Sm 150.4 63 Eu 152.0 64 Gd 157.3 65 Tb 158.9 66 Dy 162.5 67 Ho 164.9 68 Er 167.3 69 Tm 168.9 70 Yb 173.0 71 Lu 175.0 Actinides 90 Th 232.0 91 Pa 231 92 U 238.0 93 Np 237.0 94 Pu (244) 95 Am (243) 96 Cm (247) 97 Bk (247) 98 Cf (251) 99 Es (252) 100 Fm (257) 101 Md (258) 102 No (259) 103 Lr


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