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What is the composition of a hydrogen atom?
What is the composition of a hydrogen atom?
A hydrogen atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force.
What does atomic hydrogen tend to do in everyday life on Earth?
What does atomic hydrogen tend to do in everyday life on Earth?
Isolated hydrogen atoms (atomic hydrogen) are extremely rare on Earth, as a hydrogen atom tends to combine with other atoms in compounds or with another hydrogen atom to form ordinary (diatomic) hydrogen gas, H2.
What does the term 'atomic hydrogen' refer to in ordinary English use?
What does the term 'atomic hydrogen' refer to in ordinary English use?
The term 'atomic hydrogen' refers to isolated hydrogen atoms, which are distinct from the hydrogen atoms found in compounds like water.
What does atomic spectroscopy show about the states in which a hydrogen atom can exist?
What does atomic spectroscopy show about the states in which a hydrogen atom can exist?
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What is the baryonic mass contribution of atomic hydrogen to the universe?
What is the baryonic mass contribution of atomic hydrogen to the universe?
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