ne·on /ˈniˌɑn/
氖
ne·on /ˈnɪˌɑn/ 名詞
氖
neon
氖
neon
n : a colorless odorless gaseous element that give a red glow in
a vacuum tube; one of the six inert gasses; occurs in the
air in small amounts [syn: Ne, atomic number 10]
neon
Symbol: Ne
Atomic number: 10
Atomic weight: 20.183
Colourless gaseous element of group 18 on the periodic table (noble
gases). Neon occurs in the atmosphere, and comprises 0.0018% of the volume
of the atmosphere. It has a distinct reddish glow when used in discharge
tubes and neon based lamps. It forms almost no chemical compounds. Neon
was discovered in 1898 by Sir William Ramsey and M.W. Travers.