Nonmetals (Periodic Table of the Elements)
Monica Halka, Brian Nordstrom
Materials that are poor conductors of electricity are generally considered nonmetals. One important use of nonmetals is the ability to insulate against current flow. The Earths atmosphere is composed of nonmetallic elements, but lightning can break down the electron bonds and allow huge voltages to make their way to the ground. Water in its pure form is nonmetallic, though it almost always contains impurities called electrolytes that allow for an electric field.
年:
2010
出版社:
Facts on File
语言:
english
页:
222
ISBN 10:
1438131399
ISBN 13:
9781438131399
文件:
PDF, 20.90 MB
IPFS:
,
english, 2010