Chemistry: This Day in Science History - August 2 - Stromeyer and Cadmium

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This Day in Science History - August 2 - Stromeyer and Cadmium Aug 1st 2011, 22:05 August 2nd is Friedrich Stromeyer's birthday. Stromeyer was a German physician and chemist who is credited with the discovery of the element cadmium. He was a professor of chemistry at G�ttingen University where one of the duties was to inspect local apothecaries. One common medicine of the time was zinc oxide and Stromeyer discovered a local manufacturer was using zinc carbonate to produce zinc oxide. They found the zinc carbonate would turn yellow when heated as if it contained iron. Stromeyer brought the samples back to his laboratory and discovered a shiny blue-gray metal that turned out to be a new element. He named the element after the Greek name for zinc carbonate, kadmeia. Find out what else occurred on this day in science history. Follow Chemistry on Facebook or Twitter.

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Chemistry: Real Element or Fake Element? Take the Quiz!

Chemistry Get the latest headlines from the Chemistry GuideSite.

Real Element or Fake Element? Take the Quiz! Aug 1st 2011, 08:37 I was (in my opinion) pretty nice with this element quiz. I didn't ask anything tricky like whether or not ozone or fluoride were elements. So... do you think you can tell a real element from something that isn't an element? Let's find out...

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Chemistry: What's Hot Now: Alloys List

Chemistry: What's Hot Now These articles that had the largest increase in popularity over the last week

Alloys List Aug 1st 2011, 10:02 This is an alphabetical list of alloys grouped according to the base metal of the alloy. Some alloys are listed under more than one element, since the composition of the alloy may vary such that one element is present in a higher concentration than the others. Aluminum Alloys AA-8000: used for building wire Al-Li (aluminum, lithium, sometimes mercury) Alnico (aluminum, nickel, copper) Duralumin (copper, aluminum) Magnalium (aluminum, 5% magnesium) Magnox (magnesium oxide, aluminum) Nambe (aluminum plus seven other unspecified metals) Silumin (aluminum, silicon) Zamak (zinc, aluminum, magnesium, copper) Aluminum forms other complex alloys with magnesium, manganese, and platinum Bismuth Alloys Wood's metal (bismuth, lead, tin, cadmium) Rose metal (bismuth, lead, tin) Field's metal Cerrobend Cobalt Alloys Megallium Stellite (cobalt, chromium, tungsten or molybdenum, carbon) Talonite (cobalt, chromium) Ultimet (cobalt, chromium, nickel, molybdenum, iron, tungsten) Vitallium Copper Alloys Arsenical copper Beryllium copper (copper, beryllium) Billon (copper, silver) Brass (copper, zinc) Calamine brass (copper, zinc) Chinese silver (copper, zinc) Dutch metal (copper, zinc) Gilding metal (copper, zinc) Muntz metal (copper, zinc) Pinchbeck (copper, zinc) Prince's metal (copper, zinc) Tombac (copper, zinc) Bronze (copper, tin, aluminum or any other element) Aluminum bronze (copper, aluminum) Arsenical bronze (copper, arsenic) Bell metal (copper, tin) Florentine bronze (copper, aluminum or tin) Glucydur (beryllium, copper, iron) Guani­n (likely a manganese bronze of copper, manganese, with iron sulfides and other sulfides) Gunmetal (copper, tin, zinc) Phosphor bronze (copper, tin and phosphorus) Ormolu (Gilt Bronze) (copper, zinc) Speculum metal (copper, tin) Constantan (copper, nickel) Copper-tungsten (copper, tungsten) Corinthian bronze (copper, gold, silver) Cunife (copper, nickel, iron) Cupronickel (copper, nickel) Cymbal alloys (Bell metal) (copper, tin) Devarda's alloy (copper, aluminum, zinc) Electrum (copper, gold, silver) Hepatizon (copper, gold, silver) Heusler alloy (copper, manganese, tin) Manganin (copper, manganese, nickel) Nickel silver (copper, nickel) Nordic gold (copper, aluminum, zinc, tin) Shakudo (copper, gold) Tumbaga (copper, gold) Gallium Alloys Galinstan (gallium, indium, tin) Gold Alloys Electrum (gold, silver, copper) Tumbaga (gold, copper) Rose gold (gold, copper) White gold (gold, nickel, palladium, or platinum) Indium Alloys Field's metal (indium, bismuth, tin) Iron or Ferrous Alloys Steel (carbon) Stainless steel (chromium, nickel) AL-6XN Alloy 20 Celestrium Marine grade stainless Martensitic stainless steel Surgical stainless steel (chromium, molybdenum, nickel) Silicon steel (silicon) Tool steel (tungsten or manganese) Bulat steel Chromoly (chromium, molybdenum) Crucible steel Damascus steel HSLA steel High speed steel Maraging steel Reynolds 531 Wootz steel Iron Anthracite iron (carbon) Cast iron (carbon) Pig iron (carbon) Wrought iron (carbon) Fernico (nickel, cobalt) Elinvar (nickel, chromium) Invar (nickel) Kovar (cobalt) Spiegeleisen (manganese, carbon, silicon) Ferroalloys Ferroboron Ferrochrome (chromium) Ferromagnesium Ferromanganese Ferromolybdenum Ferronickel Ferrophosphorus Ferrotitanium Ferrovanadium Ferrosilicon Lead Alloys Antimonial lead (lead, antimony) Molybdochalkos (lead, copper) Solder (lead, tin) Terne (lead, tin) Type metal (lead, tin, antimony) Magnesium Alloys Magnox (magnesium, aluminum) T-Mg-Al-Zn (Bergman phase) Elektron Mercury Alloys Amalgam (mercury with just about any metal except platinum) Nickel Alloys Alumel (nickel, manganese, aluminum, silicon) Chromel (nickel, chromium) Cupronickel (nickel, bronze, copper) German silver (nickel, copper, zinc) Hastelloy (nickel, molybdenum, chromium, sometimes tungsten) Inconel (nickel, chromium, iron) Monel metal (copper, nickel, iron, manganese) Mu-metal (nickel, iron) Ni-C (nickel, carbon) Nichrome (chromium, iron, nickel) Nicrosil (nickel, chromium, silicon, magnesium) Nisil (nickel, silicon) Nitinol (nickel, titanium, shape memory alloy) Potassium Alloys KLi (potassium, lithium) NaK (sodium, potassium) Rare Earth Alloys Mischmetal (various rare earths) Silver Alloys Argentium sterling silver (silver, copper, germanium) Billon (copper or copper bronze, sometimes with silver) Britannia silver (silver, copper) Electrum (silver, gold) Goloid (silver, copper, gold) Platinum sterling (silver, platinum) Shibuichi (silver, copper) Sterling silver (silver, copper) Tin Alloys Britannium (tin, copper, antimony) Pewter (tin, lead, copper) Solder (tin, lead, antimony) Titanium Alloys Beta C (titanium, vanadium, chromium, other metals) 6al-4v (titanium, aluminum, vanadium) Uranium Alloys Staballoy (depleted uranium with titanium or molybdenum) Uranium may also be alloyed with plutonium Zinc Alloys Brass (zinc, copper) Zamak (zinc, aluminum, magnesium, copper) Zirconium Alloys Zircaloy (zirconium and tin, sometimes with niobium, chromium, iron, nickel)

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Chemistry: What's Hot Now: Naming Ionic Compounds Test Questions

Chemistry: What's Hot Now These articles that had the largest increase in popularity over the last week

Naming Ionic Compounds Test Questions Aug 1st 2011, 10:02 Naming ionic compounds is an important skill in chemistry. This is a collection of ten chemistry test questions dealing with naming ionic compounds and predicting the chemical formula from the compound name. The answers are at the end of the test. Question 1 What is the name of the compound MgSO4? Question 2 What is the name of the compound PbI2? Question 3 What is the name of the compound Fe2O3? Question 4 What is the name of the compound Cr(OH)3? Question 5 What is the name of the compound NH4Cl? Question 6 What is the chemical formula for the compound carbon tetrachloride? Question 7 What is the chemical formula for the compound rubidium nitrate? Question 8 What is the chemical formula for the compound sodium iodate? Question 9 What is the chemical formula for the compound tin(II) chloride? Question 10 What is the chemical formula for the compound copper(II) nitrate? Answers 1. magnesium sulfate 2. lead(II) iodide 3. iron(III) oxide 4. chromium(III) hydroxide 5. ammonium chloride 6. CCl4 7. RbNO3 8. NaIO3 9. SnCl2 10. Cu(NO3)2 More Chemistry Test Questions

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Chemistry: What's Hot Now: Periodic Table of Element Photos - Photos of the Elements - Periodic Table of the Elements

Chemistry: What's Hot Now These articles that had the largest increase in popularity over the last week

Periodic Table of Element Photos - Photos of the Elements - Periodic Table of the Elements Aug 1st 2011, 10:02 Click on an element symbol in the periodic table to see a photograph of the element. Unless otherwise noted, these element photos are public domain images that you may save and use. Photos are unavailable for many of the extremely rare man-made radioactive elements. Be sure to visit the standard Periodic Table of the Elements if you need detailed element facts. 1 H 2 He 3 Li 4 Be 5 B 6 C 7 N 8 O 9 F 10 Ne 11 Na 12 Mg 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar 19 K 20 Ca 21 Sc 22 Ti 23 V 24 Cr 25 Mn 26 Fe 27 Co 28 Ni 29 Cu 30 Zn 31 Ga 32 Ge 33 As 34 Se 35 Br 36 Kr 37 Rb 38 Sr 39 Y 40 Zr 41 Nb 42 Mo 43 Tc 44 Ru 45 Rh 46 Pd 47 Ag 48 Cd 49 In 50 Sn 51 Sb 52 Te 53 I 54 Xe 55 Cs 56 Ba * 72 Hf 73 Ta 74 W 75 Re 76 Os 77 Ir 78 Pt 79 Au 80 Hg 81 Tl 82 Pb 83 Bi 84 Po 85 At 86 Rn 87 Fr 88 Ra ** 104 Rf 105 Db 106 Sg 107 Bh 108 Hs 109 Mt 110 Ds 111 Rg 112 Cp 113 Uut 114 Uuq 115 Uup 116 Uuh 117 Uus 118 Uuo 57 La 58 Ce 59 Pr 60 Nd 61 Pm 62 Sm 63 Eu 64 Gd 65 Tb 66 Dy 67 Ho 68 Er 69 Tm 70 Yb 71 Lu 89 Ac 90 Th 91 Pa 92 U 93 Np 94 Pu 95 Am 96 Cm 97 Bk 98 Cf 99 Es 100 Fm 101 Md 102 No 103 Lr Alkali Metal Alkaline Earth Basic Metal Halogen Noble Gas Non Metal Rare Earth Semi-Metal Transition Metal

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Chemistry: What's Hot Now: Science Fair Report Template

Chemistry: What's Hot Now These articles that had the largest increase in popularity over the last week

Science Fair Report Template Aug 1st 2011, 10:02 You can fill in the blanks of this science fair project report template to prepare a science fair report quickly and easily. Refer to the science report description for details about what to include in each section. Title: Student's Name: Introduction: Purpose: Hypothesis: Materials and Methods: Data: Results: Conclusion: References:

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Chemistry: This Day in Science History - August 1 - Jean Baptiste Lemarck

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This Day in Science History - August 1 - Jean Baptiste Lemarck Jul 31st 2011, 22:05 August 1st is Pierre Antoine de Monet, Chevalier de la Marck's birthday. He was more widely known as simply Jean-Baptiste Lemarck. Lemarck was the French biologist who developed the first theory of evolution called Lemarckism. Lemarckism was a popular theory of evolution where an organism passed on characteristics it collected during its lifetime to future generations. This was known as soft inheritance. Another aspect of inheritance was the idea of use and disuse. An organism would lose characteristics it didn't use anymore and develop ones that were useful. For example, giraffes grew longer necks to reach leaves at the tops of trees, and their children would have longer necks as well. Lemarckism fell out of vogue when Darwin came on the scene. But Darwin and the later theories of Mendelian genetics haven't completely replaced it. Some scientists are applying the idea of soft inheritance to single celled organisms. Scientists have observed single celled organisms and prions develop new genetic structures apparently as a result of resistance to an environmental influence and then go on to pass that resistance on to future generations. Find out what else occurred on this day in science history.

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