strontium | (n) ธาตุโลหะชนิดหนึ่ง สัญลักษณ์ทางเคมีคือ Sr |
strontium | (สทรอน'เชียม) n. ธาตุโลหะชนิดหนึ่ง;Sr |
strontium | Strontium 90: One of the radioisotopes of strontium; part of radioactive fallout, harmful to human health. |
สทรอนเทียม = สตรอนเชียม | [sathrønthīem = satrønsīem] (n) EN: strontium FR: strontium [ m ] |
strontium |
strontium |
rubidium-strontium dating | (n) geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47, 000, 000, 000 years |
strontium | (n) a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite, Syn. Sr, atomic number 38 |
strontium 90 | (n) a radioactive isotope of strontium (with the mass number 90) that is present in the fallout from nuclear explosions; can be assimilated like calcium into bones |
Strontium | n. [ NL. See Strontia. ] (Chem.) A metallic element of the calcium group, always naturally occurring combined, as in the minerals strontianite, celestite, etc. It is isolated as a yellowish metal, somewhat malleable but harder than calcium. It is chiefly employed (as in the nitrate) to color pyrotechnic flames red. Symbol Sr. Atomic weight 87.3. [ 1913 Webster ] [ 1913 Webster ] |
锶 | [锶 / 鍶] strontium Sr, alkaline earth, atomic number 38 #42,876 [Add to Longdo] |
碱土金属 | [碱 土 金 属 / 鹼 土 金 屬] alkaline earth (i.e. beryllium Be 鈹|铍, magnesium Mg 鎂|镁, calcium Ca 鈣|钙, strontium Sr 鍶|锶, barium Ba 鋇|钡 and radium Ra 鐳|镭) #149,668 [Add to Longdo] |
Strontium { n } [ chem. ] | strontium [Add to Longdo] |
ストロンチウム | [sutoronchiumu] (n) strontium (Sr); (P) [Add to Longdo] |
ストロンチウム90;ストロンチウム九〇 | [ストロンチウムきゅうじゅう, sutoronchiumu kyuujuu] (n) strontium 90 (Sr-90) [Add to Longdo] |