2007-12-16 02:30:06 · 8 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Carbon
2007-12-16 02:32:38 · answer #1 · answered by Ranto 7 · 1⤊ 0⤋
A diamond is purely chemically composed of C, carbon atoms. They are arranged together in a regular, repeating pattern, the crystal structure. Due to the covalent bond between the atoms, it is a diamond (compared to graphite).
Foreign atoms, caught in between the carbon atoms, are called trace elements, and can in diamonds be nitrogen (make the diamonds yellow) or boron (make the diamonds blue). They do not belong to the chemical composition of the diamond, they are foreign elements !
2007-12-18 23:35:13 · answer #2 · answered by Philip H 4 · 1⤊ 0⤋
Graphite is also carbon however, carbon atoms in diamond are covalently bonded and are arranged in a three-dimensional tetrahedral structure. All bonds are of the same length, 0.154 nm. In this rigid network, none of the carbon atoms can move. This accounts for the fact that diamonds are so hard and have such a high melting point.
Graphite is a good electrical conductor. Diamond is a good insulator. Diamond is an excellent abrasive. Graphite makes a good lubricant. Graphite is opaque. Diamond is transparent. It is because of their respective structures that two substances composed solely of carbon atoms can have such different properties.
2007-12-16 02:43:57 · answer #3 · answered by Shahn 2 · 0⤊ 0⤋
Diamond is carbon in its most concentrated form. Except for trace impurities like boron and nitrogen, diamond is composed solely of carbon, the chemical element that is fundamental to all life.
2007-12-16 02:41:23 · answer #4 · answered by Fast boy + sexy boy + doglover 7 · 0⤊ 0⤋
Diamond is carbon in its most concentrated form. Except for trace impurities like boron and nitrogen, diamond is composed solely of carbon, the chemical element that is fundamental to all life.
2007-12-16 02:33:44 · answer #5 · answered by Anonymous · 1⤊ 0⤋
Chemical Formula: 100.00 % C
Composition: Molecular Weight = 12.01 gm
Empirical Formula: C
2007-12-16 02:36:59 · answer #6 · answered by Tom Z 7 · 0⤊ 0⤋
It's pure carbon. It's so hard because the molecules are arranged so that each carbon atom is exactly the same distance away from the others.
2007-12-16 02:37:35 · answer #7 · answered by FantasyGeek 4 · 0⤊ 0⤋
Diamond is a allotrope of Carbon.
http://en.wikipedia.org/wiki/Allotropes_of_carbon#Diamond
2007-12-16 02:33:08 · answer #8 · answered by C63AMG 5 · 0⤊ 0⤋