| 单词 | alkaline-earth metal |
| 释义 | alkaline-earth metal[ al-kuh-lahyn-urth, -lin- ] / ˈæl kəˌlaɪnˈɜrθ, -lɪn- / noun Chemistry.any of the group of bivalent metals including barium, radium, strontium, calcium, and, usually, magnesium, the hydroxides of which are alkalis but less soluble than those of the alkali metals. Origin of alkaline-earth metalFirst recorded in 1900–05 Words nearby alkaline-earth metalalkalimeter, alkalimetry, alkaline, alkaline-ash diet, alkaline earth, alkaline-earth metal, alkaline phosphatase, alkaline soil, alkaline tide, alkalinity, alkalinuria Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Medical definitions for alkaline-earth metalalkaline-earth metal n.Any of a group of metallic elements including calcium, strontium, magnesium, barium, beryllium, and radium. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for alkaline-earth metalalkaline-earth metal Any of a group of metallic elements that includes beryllium, magnesium, calcium, strontium, barium, and radium. Because the alkaline-earth metals have two electrons in their outer shell, they react easily with other elements and are found in nature only in compounds. See Periodic Table. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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