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alkali metal
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alkali metal

Any of a group of six metallic elements with similar chemical properties: lithium, sodium, potassium, rubidium, caesium, and francium. They form a linked group (Group 1) in the periodic table of the elements. They each have a valency of one and have very low densities (lithium, sodium, and potassium float on water); in general they are reactive, soft, low-melting-point metals. Because of their reactivity they are only found as compounds in nature.



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? Mentioned in ? References in periodicals archive
 
Meteoric waters in near-surface settings are almost always undersaturated with respect to carbonates because rain water is essentially devoid of earth alkali metals yet slightly acidic because of dissolved atmospheric C[O.
Investigations of burial diagenesis in carbonate hydrocarbon ... by Machel, Hans G. / Geoscience Canada
The new observation that sodium can melt at just above room temperature, 27[degrees]C, confirms a growing suspicion among scientists that alkali metals are more complicated than they previously thought.
Metal rebel: under extreme pressure, sodium breaks the rules for ... by Goho, A. / Science News
This is especially important in alkali metals where the one valence electron is particularly sensitive to any core changes.
Electron-impact cross sections for ground state to np excitations of ... by Kim, Yong-Ki / Journal of Research of the National Institute of Standards and Technology
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