beryllium
铍,铍金,铍的,铍的问题
Definitions
- 1
Chemistry.
- : a steel-gray, bivalent, hard, light, metallic element, the salts of which are sweet: used chiefly in copper alloys for better fatigue endurance, in springs, and in electrical contacts. Symbol: Be; atomic weight: 9.0122; atomic number: 4; specific gravity: 1.8 at 20° C.
Examples
Older computer monitors also contain up to eight pounds of lead, as well as mercury, arsenic, cadmium, and beryllium, according to the Long Island manufacturing center, a recycling and e-waste drop-off site.
He reported that mysterious radiation emitted when beryllium was bombarded with the nuclei of helium atoms could be explained by a particle with no charge and with a mass similar to the proton’s.
Protons from a synchrotron were flung against a target of beryllium atoms.
Wayne felt his heart starting to pound; D-N beryllium was big.
Actually, it could be found eventually with the D-N beryllium as a guide.
One such reaction uses alpha particles emitted by polonium-210 (or some other alpha emitter) to bombard the element beryllium.
That was beryllium steel, the alloy from which the barriers at the terminals of the surta mine were fashioned.
The oxide of beryllium, BeO (also known as glucina), occurs in nature mainly as silicate.