Beryllium - element of the periodic table,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银行、工商银行等数万家企业
Berylliumis achemical elementin theperiodic tablethat has the symbolBeandatomic number4. A toxic bivalent element, beryllium is a steel grey, strong, light-weight yet brittle, alkaline earth metal, that is primarily used as a hardening agent in alloys (most notably, beryllium copper). ...
beryllium(bərĭlˈēəm)[fromberyl ], metallic chemical element; symbol Be; at. no. 4; at. wt. 9.01218; m.p. about 1,278℃; b.p. 2,970℃ (estimated); sp. gr. 1.85 at 20℃; valence +2. Beryllium is a strong, extremely light, high-melting, silver-gray metal with ...
Beryllium, chemical element that is the lightest member of the alkaline-earth metals of Group 2 of the periodic table. It is used in metallurgy as a hardening agent and in many outer space and nuclear applications. It is a steel-gray metal that is quite
摄图新视界提供Beryllium Chemical 4 element of periodic table. Molecule 图片下载,另有原子,原子的,背景,铍,铍原子,铍铍,铍符号,生物学,化学的,化学,概念,教育,电子,要素,能量图片搜索供您浏览下载,每张图片均有版权可放心商用,您正在浏览的图片为2p5xjz
Element number four, beryllium, follows lithium and is situated under magnesium in the alkaline earth group of the periodic table. Like these metals, it has a very low density, at 1.85 g/cm~3, but it has a surprisingly high melting point of 1,287℃ (magnesium melts at 651℃, and ...
metallic element, metal 联想词 boron;plutonium;aluminum铝;aluminium铝;tungsten钨;manganese锰;uranium铀;cadmium镉;titanium钛;alloy合金;neutron中子;词组| 习惯用语 beryllium copper 铍铜,铍铜合金 beryllium bronze n. 铍青铜 beryllium oxide 化铍英语例句库 Microgram for microgram, beryllium is one of the mos...
(Elements & Compounds) a corrosion-resistant toxic silvery-white metallic element that occurs chiefly in beryl and is used mainly in X-ray windows and in the manufacture of alloys. Symbol: Be; atomic no: 4; atomic wt: 9.012; valency: 2; relative density: 1.848; melting pt: 1289°C; boi...
Periodic Table of Elements Provides comprehensive data for each element of the periodic table of elements including up to 40 properties, names in 10 languages and common chemical compounds. Information also provided for 3,600 nuclides and 4,400 nuclide decay modes.Editor...
Element Classification:Alkaline-earth Metal Isotopes:Beryllium has ten known isotopes, ranging from Be-5 to Be-14. Be-9 is the only stable isotope. Density (g/cc):1.848 Specific Gravity(at 20 °C):1.848 Appearance:hard, brittle, steel-gray metal Melting Point:1287 °C Boiling Point:2471 ...