chemistry
2006-07-07 22:37:19 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
allotrope
n : a structurally different form of an element; "graphite and
diamond are allotropes of carbon"
2006-07-07 22:42:06 · answer #1 · answered by zen 7 · 0⤊ 0⤋
Some elements form there structures in Different ways. these are called there allotrops. For example Carbon has two Allotrops graphite and Diamond, Oxygen has two Allotrops O2 and O3.
2006-07-08 08:13:53 · answer #2 · answered by Scientist 2 · 0⤊ 0⤋
While I agree, in principal, with several of the answers that you have received (the easiest one is Carbon...Lampblack...Graphite (mixed with very fine clay... it becomes your favorite pencil) and then Cubic Zirconia and then Diamonds) A much easier one to see in a large city would be Oxygen (O2) If you add another atom of Oxygen then you would get Ozone (O3). The easiest to try yourself is to get a supply of Sulfur (from your Pharmacy - it is sold as Flowers of Sulfur) Put about a 1/2" in a test tube and heat slowly over a bunson burner. It will slowly melt and you can dump it on a rag or shop cloth. It will be hot, but will cool quickly. What you will notice is that you have added nothing to the Sulfur, but when it is cooled, it will look nothing like the sulfur that you have from your pharmacy. The most important thing about an Allotrope is that when it is observed at the same temperature, it will be related, but not a twin! The major difference between any allotropee is that one of two things have happened; time or heat/pressure. A wonderful allotrop is Silicon, when in it's most elemental form, it is basically a lump of glass that looks like coal, as it deteriorates, it becomes Silicon Dioxide and eventually breaks down to sand.
2006-07-08 06:20:37 · answer #3 · answered by jpr_sd 4 · 0⤊ 0⤋
Allotropes are different structures of pure elemental substances.
For example, carbon has many allotropes, to name just two: the atoms can 'form' a tetrahedral shape as in diamond, or layers of hexagonal rings as in graphite.
2006-07-08 05:43:15 · answer #4 · answered by The Yeti 3 · 0⤊ 0⤋
Element with more than one natural form. e.g a structurally different form of an element; "graphite and diamond are allotropes of carbon"
2006-07-08 05:42:15 · answer #5 · answered by pawan_iiitm 2 · 0⤊ 0⤋
allotrope like coal and diamond. both made of carbon but have very different structures
2006-07-14 11:16:19 · answer #6 · answered by shiara_blade 6 · 0⤊ 0⤋
in allotrops there are same elements but different structure.e.g.graphic and diamond are most popular.
2006-07-08 07:42:02 · answer #7 · answered by San 2 · 0⤊ 0⤋
metals that have different properties at different temperature is called allotrop for examole pure iron under 760 degree centigrade are feromagnetice and its structure is bbc but above this degree is fcc and paramagnetice but higher temperature became bbc.
2006-07-08 05:47:18 · answer #8 · answered by eshaghi_2006 3 · 0⤊ 0⤋
allotropes are those which are made up of same element ,,have same chemical formula,,same chemical properties but different physical properties ,ex. diamond,graphite,they hav same chemical properties ,but hav diff c-c bond structure
2006-07-08 05:58:14 · answer #9 · answered by Atul 1 · 0⤊ 0⤋