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单词 atomic number 37
释义
atomic number 37
(extremely rare)
n

WORD FAMILY
atomic number 37
USAGE EXAMPLES
Rubidium is the chemical element of atomic number 37, a rare soft silvery reactive metal of the alkali metal group.
Scientific American(Oct 14, 2013)
n a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
Syn|Hyper
Rb, rubidium
metal, metallic element
any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
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