enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Tin - Wikipedia

    en.wikipedia.org/wiki/Tin

    Tin is a chemical element; it has symbol Sn (from Latin stannum) and atomic number 50. A silvery-colored metal, tin is soft enough to be cut with little force, [10 ...

  3. Tin sources and trade during antiquity - Wikipedia

    en.wikipedia.org/wiki/Tin_sources_and_trade...

    Tin is a relatively rare element in the Earth's crust, with about two parts per million (ppm), compared to iron with 50,000 ppm, copper with 70 ppm, lead with 16 ppm, ...

  4. Isotopes of tin - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_tin

    Tin (50 Sn) is the element with the greatest number of stable isotopes ... Tin-121m (121m Sn) is a radioisotope and nuclear isomer of tin with a half-life of 43.9 years.

  5. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    Each chemical element has a unique atomic number (Z— for "Zahl", German for "number") representing the number of protons in its nucleus. [4] Each distinct atomic number therefore corresponds to a class of atom: these classes are called the chemical elements. [5] The chemical elements are what the periodic table classifies and organizes.

  6. Tin mining - Wikipedia

    en.wikipedia.org/wiki/Tin_mining

    Tin mining began early in the Bronze Age, as bronze is a copper-tin alloy. Tin is a relatively rare element in the Earth's crust, with approximately 2 ppm (parts per million), compared to iron with 50,000 ppm.

  7. Category:Tin compounds - Wikipedia

    en.wikipedia.org/wiki/Category:Tin_compounds

    Tin compounds are alloys and mixtures that contain the chemical element tin. Subcategories. This category has the following 6 subcategories, out of 6 total. ...

  8. Titanium - Wikipedia

    en.wikipedia.org/wiki/Titanium

    Titanium nitride (TiN) is a refractory solid exhibiting extreme hardness, thermal/electrical conductivity, and a high melting point. [46] TiN has a hardness equivalent to sapphire and carborundum (9.0 on the Mohs scale ), [ 47 ] and is often used to coat cutting tools, such as drill bits . [ 48 ]

  9. Carbon group - Wikipedia

    en.wikipedia.org/wiki/Carbon_group

    Tin makes up 2 parts per million of the Earth's crust, making it the 49th most abundant element there. On average, tin makes up 1 part per million of soil. Tin exists in seawater at concentrations of 4 parts per trillion. Tin makes up 428 parts per billion of the human body.