Beryllium | Name | Beryllium | | Symbol | Be | | Atomic Number | 4 | | Atomic Mass | 9.012 atomic mass units | | Number of Protons | 4 | | Number of Neutrons | 5 | | Number of Electrons | 4 | | Melting Point | 278.0° C | | Boiling Point | 2970.0° C | | Density | 1.8477 grams per cubic centimeter | | Normal Phase | Solid | | Family | Alkaline Earth Metals | | Period | 2 | | Cost | $530 per 100 grams | | Origin of Name | From the Greek word beryllos, a semi-precious stone (beryl) | | Date and Place of Discovery | In 1797 in Paris, France (as an oxide in beryl and emerald) | | Discovered by | Nicolas-Louis Vauquelin It was isolated by Friedrich Wöhler in 1798. | | Common Compounds | - Beryllium fluoride (BeF2)
| | Interesting facts | - It does not corrode (rust).
- It is stronger than steel but is the lightest metal.
- Its compounds are sweet tasting but are very toxic.
- It transmits x-rays 17 times faster than aluminum.
- It can be found in urine and blood.
| | Common Uses | - Gyroscopes
- Computer parts (shutters)
- Aircraft
- Missiles
- Ceramics
| Photo Courtesy of About.com Chemical Elements Environmental Chemistry Jefferson Lab Wikipedia | | Beryllium Atomic Structure | Elements by Name | Elements by Number | Home | |
