rare gas; noble gas; inert gas
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Meanings
1 sense · 4 examplesnoun
rare gases; noble gases; inert gases (formerly): a group of six colorless, odorless, monatomic elements (helium, neon, argon, krypton, xenon, radon) with extremely low chemical reactivity
In modern chemistry, 'noble gases' is often preferred over 'inert gases' since some compounds of these elements have been synthesized. The term 'rare gases' refers to their scarcity in Earth's atmosphere.
Xī稀
yǒu有
qì气
tǐ体
zài在
zhào照
míng明
gōng工
yè业
hé和
hàn焊
jiē接
bǎo保
hù护
zhōng中
yǒu有
guǎng广
fàn泛
yìng应
yòng用
。
Rare gases are widely used in the lighting industry and as shielding gases for welding.
Nǎi氖
qì气
shì是
yī一
zhǒng种
xī稀
yǒu有
qì气
tǐ体
，
tōng通
diàn电
shí时
huì会
fā发
chū出
měi美
lì丽
de的
hóng红
guāng光
。
Neon is a rare gas that emits a beautiful red light when electrified.
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Yóu由
yú于
huà化
xué学
xìng性
zhì质
jí极
bù不
huó活
pō泼
，
xī稀
yǒu有
qì气
tǐ体
cháng常
bèi被
yòng用
zuò作
bǎo保
hù护
qì气
yǐ以
fáng防
zhǐ止
yǎng氧
huà化
。
Due to their extremely low chemical reactivity, rare gases are often used as protective gases to prevent oxidation.
Jiù旧
chēng称
duò惰
xìng性
qì气
tǐ体
，
xiàn现
zài在
gèng更
cháng常
chēng称
wéi为
xī稀
yǒu有
qì气
tǐ体
huò或
guì贵
zú族
qì气
tǐ体
。
Formerly called inert gases, they are now more commonly referred to as rare gases or noble gases.