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| My Nucleus |
Zinc has thirty protons and an average of thirty-five neutrons; its average atomic mass is 65.38.
Zinc occurs in nature in four stable isotopes: zinc-64, zinc-66, zinc-67, and zinc-68. Zinc-64 is the most abundant of those four.
Zinc has twenty-two radioactive isotopes. Two common ones are zinc-65, which has a half-life of 244.26 days, and zinc-72, which has a half-life of 46.5 hours. All other isotopes have half-lives ranging from less than one second to fourteen hours.
| My Electrons |
Neutral zinc atoms have thirty electrons, including its two valence electrons. Its common ion has a charge of 2+.
Zinc occupies the d block. Its electron configuration in shorthand is [Ar] 3d10 4s2.
| My Properties|
lustrous, bluish white, metal, fairly reactive, brittle and crystalline at room temperature, ductile and malleable between 110 degrees celsius and 150 degrees celsius
| My Home |
(Body, Planet, Universe)
Zinc is the twenty-third most abundant element in the Earth's crust. It is found in many mined minerals.
Zinc is found in many animal and plant organisms, including humans. It is found in insulin, the zinc finger protein, and enzymes. "Humulin R" contains zinc-insulin crystals.
zinc finger RNA
I am Element!
World of Molecules
Chemical Reaction: Water
clip from "The Simpsons"
Zinc Yellow Mustang GT
| My Compounds|
Zinc oxide, A.K.A. zinc white, has many uses. Zinc chloride is used in preserving wood, adhesives, dyeing textiles, and cements. Zinc sulfide is used in making television screens and x-rays. Zinc yellow is used as a pigment. Sodium zincate is a water softener.
Homer Simpson's head x-ray
brass reacts with chlorine to make zinc chloride
| My Story |
Zinc has been used since 1100 B.C. in brass and other alloys. Romans were making brass by 30 B.C. with calamine (which contains zinc oxide) and copper. In 1000 A.D. in China and India, zinc's pure form could be extracted.
Andreas Margraff is credited with the discovery of zinc in 1746. In 1744, zinc had already been isolated by another chemist named Anton von Swab, but Margraff's reports were much more detailed, and his research was more accurate so Margraff got credit.
The name "zinc" could come from a scientist named Agricola. He observed that this metal was found in furnaces that metled zinc ore, and called it "zincum".
| My Jobs |
Zinc is used to galvanize iron and make alloys such as brass, German silver, Babbitt metal, and bronze. Zinc is used in making negative plates in some electric batteries, and roofing and gutters. Zinc helps growth in many plants and animals. It is also used to treat diabetes, because it is in insulin. Zinc also makes up 98% of the US penny.
Latest page update: made by C0pper
, Feb 5 2007, 11:27 AM EST
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