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physical object > natural object > particle > molecule > diatomic molecule > molecular hydrogen > para-hydrogen

para-hydrogen
subject			fact

para-hydrogen	has definition Molecular hydrogen in which the two protons of the diatomic molecule have opposite directions of spin. It is a lower energy state than ortho-hydrogen.
	is an instance of molecular hydrogen
molecular hydrogen	has symbol H2
neutral particle	is not accelerated by electric or magnetic fields
	has charge 0
interstellar molecule	has discovery in space date
diatomic molecule	has decompostion temperature < 10000 K
particle	obeys uncertainty principle
	has frequency inversely proportional to the wavelength
	has wavelength inversely proportional to its momentum
	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

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