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diatomic molecule
subject			fact

diatomic molecule	has decompostion temperature < 10000 K
	has definition a molecule containing only two atoms which can be of different elements
	is a kind of molecule
particle	obeys uncertainty principle
	has frequency inversely proportional to the wavelength
	has wavelength inversely proportional to its momentum
	has charge
	has mass
physical object	has location or center of gravity
	has angular momentum
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

Kinds of diatomic molecule :

• carbon monosulfide (3 facts) (CS)
• carbon monoxide (5 facts) (CO) - A molecule consisting of one carbon atom and one oxygen atom. It is the most abundant interstellar molecule after molecular hydrogen and is especially useful because it radiates at radio wavelengths, so astronomers can use it to map the distribution of molecular hydrogen.
• cyanogen radical (3 facts) (CN)
• hydroxyl radical (4 facts) (OH) - An interstellar molecule first detected in 1963 at a wavelength of 18 cm. The four transitions that occur near 18 cm are caused by the splitting of the ground level. Galactic OH sources have been divided into three classes according to whether the OH emission is strongest in the main lines, particularly at 1665 MHz (Class 1), whether the emission and absorption are highly anomalous only in the satellite lines (Class 2) (Class 2a, 1720-line emitters; Class 2b, 1612-line emitters), or whether there is only absorption in all four lines (Class 3).
• molecular hydrogen (2 kinds, 10 facts) (H₂) - A molecule consisting of two hydrogen atoms (H₂) and the most common molecule in space., A molecule of hydrogen, discovered in interstellar space in 1970. H₂ is a very hard molecule to detect. None of its transitions lie in the visible part of the spectrum. Second, being a symmetric homonuclear molecule, it does not have an electric-dipole rotation-vibration spectrum, and detection must be based on the weak quadrupole spectrum. Third, ultraviolet radiation is a very efficient dissociator of H₂, so any H₂ that survived would presumably be located inside very dense interstellar clouds. So far observations have borne out this supposition. Measurements of the region within about 1 kpc of the Sun suggest that H₂ is about twice as abundant as atomic H.
• molecular oxygen (4 facts) (O₂)
• silicon monosulfide (3 facts) (SiS)
• silicon monoxide (3 facts) (SiO)
• sulfur monoxide (3 facts) (SO)

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