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helium auf portugiesisch

Übersetzung von helium im englisch portugiesisch Wörterbuch:
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Mercury's atmosphere is very thin and is composed of helium and sodium. A atmosfera de Mercúrio é muito fina e é composta por hélio e sódio. ajdavidl
Uranus' atmosphere is made up of hydrogen, helium, and methane. A atmosfera de Urano é composta de hidrogênio, hélio e metano. ajdavidl
Helium, neon, argon, krypton, xenon and radon are noble gases. O hélio, o neônio, o argônio, o criptônio, o xenônio e o radônio são gases nobres. alexmarcelo
A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Uma nebulosa é uma nuvem interestelar de poeira, hidrogênio, hélio e outros gases ionizados. ajdavidl
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Definition helium

Helium
Helium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, tasteless[...]
https://en.wikipedia.org/wiki/Helium

Isotopes of helium
there are nine known isotopes of helium (2He) (standard atomic weight: 4.002602(2)), only helium-3 (3 He ) and helium-4 (4 He ) are stable. All radioisotopes[...]
https://en.wikipedia.org/wiki/Isotopes_of_helium

Helium-weak star
Helium-weak stars are chemically peculiar stars which have a weak helium lines for their spectral type. Their helium lines place them in a later (i.e.[...]
https://en.wikipedia.org/wiki/Helium-weak_star