202
edits
→BORON
(→BORON) |
(→BORON) |
||
| Line 6: | Line 6: | ||
Several allotropes of boron exist: amorphous boron is a brown powder and crystalline boron is black, extremely hard (about 9.5 on Mohs' scale), and a poor conductor at room temperature. Elemental boron is used as a dopant in the semiconductor industry, while boron compounds play important roles as light structural materials, insecticides and preservatives, and reagents for chemical synthesis. | Several allotropes of boron exist: amorphous boron is a brown powder and crystalline boron is black, extremely hard (about 9.5 on Mohs' scale), and a poor conductor at room temperature. Elemental boron is used as a dopant in the semiconductor industry, while boron compounds play important roles as light structural materials, insecticides and preservatives, and reagents for chemical synthesis. | ||
[http://en.wikipedia.org/wiki/Boron Boron Wiki] | [http://en.wikipedia.org/wiki/Boron Boron Wiki] | ||
<videoflash type="youtube"> | <videoflash type="youtube">JzqdHkpXuy4 340|275</videoflash> | ||
==Filming Concepts== | ==Filming Concepts== | ||