triatomic gas
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monatomic gas — ▪ physical science gas composed of particles (molecules) that consist of single atoms, such as helium or sodium vapour, and in this way different from diatomic, triatomic, or, in general, polyatomic gases. The thermodynamic behaviour of a… … Universalium
Allotropes of sulfur — There are a large number of allotropes of sulfur. In this respect, sulfur is second only to carbon.[1] The most common form found in nature is yellow orthorhombic α sulfur, which contains puckered rings of S8.[1] Chemistry students may have seen… … Wikipedia
Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium … Wikipedia
oxygen — oxygenic /ok si jen ik/, oxygenous /ok sij euh neuhs/, adj. oxygenicity /ok si jeuh nis i tee/, n. /ok si jeuhn/, n. Chem. a colorless, odorless, gaseous element constituting about one fifth of the volume of the atmosphere and present in a… … Universalium
Hidrógeno molecular protonado — El Hidrógeno molecular protonado, catión trihidrógeno, o H3+, es uno de los iones más abundantes del Universo. Es estable en el medio interestelar debido a la baja temperatura y baja densidad del espacio interestelar. El ion H3+ posee gran… … Wikipedia Español
Heat capacity — Thermodynamics … Wikipedia
Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) … Wikipedia
Ozone — For other uses, see Ozone (disambiguation). Ozone … Wikipedia
Hidrógeno — Este artículo trata sobre un elemento químico. Para la molécula (H2), formada por dos átomos de hidrógeno, véase Dihidrógeno. Para otros usos de este término véase Hidrógeno (desambiguación). ← Hidrógeno → Helio … Wikipedia Español
atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… … Universalium
Avogadro, Amedeo — ▪ Italian physicist Introduction in full Lorenzo Romano Amedeo Carlo Avogadro, conte di Quaregna e Cerreto born August 9, 1776 , Turin, in the Kingdom of Sardinia and Piedmont died July 9, 1856, Turin, Italy Italian mathematical physicist who … Universalium
