Difference between revisions of "Zinc"
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| − | {{Element | name=Zinc| symbol=Zn | anumber=30 | amass= 65.4 amu| noe=30 | class= | cstructure= Hexagonal | color= Bluish gray | date= 1746 | discname= Andreas Marggraf | origname= From the German word ''zinke'' (meaning jagged or tooth-like) | uses=Metal coating, rust protection (galvanization), [ | + | {{Element | name=Zinc| symbol=Zn | anumber=30 | amass= 65.4 amu| noe=30 | class= | cstructure= Hexagonal | color= Bluish gray | date= 1746 | discname= Andreas Marggraf | origname= From the German word ''zinke'' (meaning jagged or tooth-like) | uses=Metal coating, rust protection (galvanization), [[brass]] | obtained=Zinc blende, calamine}} |
| − | '''Zinc''' is one of the oldest metals known to mankind.<ref>[ | + | '''Zinc''' is one of the oldest metals known to mankind.<ref>[ Zinc, Wide Usage of a Modest Metal: One of the Earliest Metals to have Appeared in Human History]</ref> |
| − | It is a [ | + | It is a [[element|chemical element]] with the symbol Zn and atomic number 30. In some historical and sculptural contexts, it is (or was) known as spelter. It is a [[transition metal]]. |
| − | Zinc is most commonly used to [ | + | Zinc is most commonly used to [[galvanization|galvanize]] other metals or alloys to make them [[corrosion]] resistant. It is also a main constituent of many coins. |
| − | Zinc also is a [ | + | Zinc also is a [[trace element]] essential to life. |
Zinc lozenges have been claimed to lessen the duration of the common cold, but | Zinc lozenges have been claimed to lessen the duration of the common cold, but | ||
| − | :As with more traditional over-the-counter medications, evidence that these products help reduce the duration of colds or lessen symptoms is mostly subjective, says Linda Lambert, cold and flu program director at the National Institute of Allergy and Infectious Disease.<ref> [http:// | + | :As with more traditional over-the-counter medications, evidence that these products help reduce the duration of colds or lessen symptoms is mostly subjective, says Linda Lambert, cold and flu program director at the National Institute of Allergy and Infectious Disease.<ref> [http://www.highbeam.com/doc/1G1-67520659.html Zinc may lessen length, severity of cold]</ref> |
Small pieces of zinc can burn with a blue flame. | Small pieces of zinc can burn with a blue flame. | ||
| − | [ | + | [[File:Zinc burning.JPG|thumb|Zinc burning]] |
==Notes== | ==Notes== | ||
<references /> | <references /> | ||
[[Category:Metals]] | [[Category:Metals]] | ||
Revision as of 01:49, December 22, 2010
| Zinc | |
|---|---|
| Properties | |
| Atomic symbol | Zn |
| Atomic number | 30 |
| Atomic mass | 65.4 amu |
| Other Information | |
| Date of discovery | 1746 |
| Name of discoverer | Andreas Marggraf |
| Name origin | From the German word zinke (meaning jagged or tooth-like) |
| Uses | Metal coating, rust protection (galvanization), brass |
| Obtained from | Zinc blende, calamine |
Zinc is one of the oldest metals known to mankind.[1] It is a chemical element with the symbol Zn and atomic number 30. In some historical and sculptural contexts, it is (or was) known as spelter. It is a transition metal.
Zinc is most commonly used to galvanize other metals or alloys to make them corrosion resistant. It is also a main constituent of many coins. Zinc also is a trace element essential to life.
Zinc lozenges have been claimed to lessen the duration of the common cold, but
- As with more traditional over-the-counter medications, evidence that these products help reduce the duration of colds or lessen symptoms is mostly subjective, says Linda Lambert, cold and flu program director at the National Institute of Allergy and Infectious Disease.[2]
Small pieces of zinc can burn with a blue flame.
Notes
- ↑ [ Zinc, Wide Usage of a Modest Metal: One of the Earliest Metals to have Appeared in Human History]
- ↑ Zinc may lessen length, severity of cold