| 单词 | 原子序数 |
| 释义 | 〔transuranic〕Having an atomic number greater than 92.超铀的：原子序数超过92的〔yttrium〕A silvery metallic element, not a rare earth but occurring in nearly all rare-earth minerals, used in various metallurgical applications, notably to increase the strength of magnesium and aluminum alloys. Atomic number 39; atomic weight 88.905; melting point 1,522°C; boiling point 3,338°C; specific gravity 4.45 (25°C); valence 3. See table at element 钇：一种银色金属元素，不是稀土但几乎存在于所有的稀土物质中，用于各种冶金的运用中，可显著提高镁铝合金的强度。原子序数39；原子量88.905；熔点1,522°C；沸点3,338°C；比重4.45（在25°C时）；化合价3 参见 element〔actinide〕Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 (actinium) through 103 (lawrencium).锕类：任何化学性质相似，原子序数在89（锕）与103（铹）之间变化的放射性元素〔beryllium〕A high-melting, lightweight, corrosion-resistant, rigid, steel-gray metallic element used as an aerospace structural material, as a moderator and reflector in nuclear reactors, and in a copper alloy used for springs, electrical contacts, and nonsparking tools. Atomic number 4; atomic weight 9.0122; melting point 1,278°C; boiling point 2,970°C; specific gravity 1.848; valence 2. See table at element 铍：一种高熔点、质轻、抗腐蚀、坚硬的青灰色金属元素，用作宇宙空间结构材料，如核反应器中的减速剂和反射体，铍铜合金用于制造弹簧、电接触器和无电花工具。原子序数4；原子量9.0122；熔点1,278°C；沸点2,970°C；比重1.848；化合价2 参见 element〔hydrogen〕A colorless, highly flammable gaseous element, the lightest of all gases and the most abundant element in the universe, used in the production of synthetic ammonia and methanol, in petroleum refining, in the hydrogenation of organic materials, as a reducing atmosphere, in oxyhydrogen torches, and in rocket fuels. Atomic number 1; atomic weight 1.00797; melting point -259.14°C; boiling point -252.8°C; density at 0°C 0.08987 gram per liter; valence 1. See table at element 氢：一种无色，易燃的气体物质，在所有气体中最轻，而宇宙中最多用来生产合成氨和甲醇，提炼石油，氢化有机物质作为收缩的气体，用在氧氢焰熔接器和火箭燃料中。原子序数为1；原子量为1.00797；熔点为-259.14°C；沸点-252.8°C；零度时的密度是0.08987克/公升；原子价为1 参见 element〔thallium〕A soft, malleable, highly toxic metallic element, used in photocells, infrared detectors, low-melting glass, and formerly in rodent and ant poisons. Atomic number 81; atomic weight 204.37; melting point 303.5°C; boiling point 1,457°C; specific gravity 11.85; valence 1, 3. See table at element 铊：柔轻的可延展的剧毒金属元素，用于光电池、红外检测器、低熔玻璃，从前用于田鼠和蚂蚁的毒药。原子序数81；原子量204.37；熔点303.5°C；沸点1,457°C；比重11.85；化合价1或3 参见 element〔promethium〕A radioactive rare-earth element prepared by fission of uranium or by neutron bombardment of neodymium, having 14 isotopes with mass numbers ranging from 141 to 154 and used as a source of beta rays. Atomic number 61; melting point 1,168°C; boiling point 2,460°C; valence 3. See table at element 钜：放射性稀土元素，由铀分裂或钛的中子爆炸而成，有十四个拥有从141到154的质量数的同位素，用作β射线源。原子序数61；熔点1,168°C；沸点2,460°C；原子价为3 参见 element〔titanium〕A strong, low-density, highly corrosion-resistant, lustrous white metallic element that occurs widely in igneous rocks and is used to alloy aircraft metals for low weight, strength, and high-temperature stability. Atomic number 22; atomic weight 47.90; melting point 1,660°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4. See table at element 钛：一种坚固、低密度、高度抗腐蚀的带光泽的白色金属元素，广泛存在于火成岩中，由于其质量轻，牢固和抗高温的性能被用于做飞行器的合金。原子序数22；原子量47.90；熔点1,660°C；沸点3,287°C；比重4.54；原子价2,3,4 参见 element〔francium〕An extremely unstable radioactive element of the alkali metals, produced artificially from actinum or thorium, having approximately 19 isotopes, the most stable of which is Fr 223 with a half-life of 21 minutes. Atomic number 87; valence 1. See table at element 钫：从碱金属锕或钍中人工提炼出的一种极不稳定的放射线元素，约有19种同位素，其中最稳定的是半衰期为21分钟的Fr223。原子序数为87；化合价为1 参见 element〔boron〕A soft, brown, amorphous or crystalline nonmetallic element, extracted chiefly from kernite and borax and used in flares, propellant mixtures, nuclear reactor control elements, abrasives, and hard metallic alloys. Atomic number 5; atomic weight 10.811; melting point 2,300°C; sublimation point 2,550°C; specific gravity (crystal) 2.34; valence 3. See table at element 硼：一种柔软、棕色、无定形或结晶的非金属元素，主要从四水硼砂和硼砂中提取，用于闪光剂、推进混合物、原子反应控制剂、磨砂和硬合金中。原子序数5；原子量10.811；熔点2,300°C；沸点2,550°C；比重（晶体）2.34；化合价3 参见 element〔palladium〕A soft, ductile, steel-white, tarnish-resistant, metallic element occurring naturally with platinum, especially in gold, nickel, and copper ores. Because it can absorb large amounts of hydrogen, it is used as a purification filter for hydrogen and a catalyst in hydrogenation. It is alloyed for use in electric contacts, jewelry, nonmagnetic watch parts, and surgical instruments. Atomic number 46; atomic weight 106.4; melting point 1,552°C; boiling point 3,140°C; specific gravity 12.02 (20°C); valence 2, 3, 4. See table at element 钯：一种柔软的，易拉长的，银白色的，保持光泽的金属性元素，常与铂共生，尤其在金、镍和铜矿中存在。因为它能吸收大量氢，常用作除氢的过滤器或氢化作用的催化剂。其合金可用于电子接触器、珠宝、无磁性表部件以及外科医用器具。原子序数46；原子量106.4；熔点1,552°C；沸点3,140°C；比重12.02（在20°C时）；化合价2，3，4 参见 element〔nobelium〕A radioactive transuranic element in the actinide series, artificially produced in trace amounts. Its longest-lived isotope is No 255 with a half-life of 3 minutes. Atomic number 102. See table at element 锘：在锕类元素中的一种放射性超铀元素，人工微量制造，其最长寿命的同位素是锘255，其半衰期为三分钟，原子序数102 参见 element〔lithium〕A soft, silvery, highly reactive metallic element that is used as a heat transfer medium, in thermonuclear weapons, and in various alloys, ceramics, and optical forms of glass. Atomic number 3; atomic weight 6.939; melting point 179°C; boiling point 1,317°C; specific gravity 0.534; valence 1. See table at element 锂：一种柔软、银色、极易反应的金属元素，作为导热体用于热核子武器、及各种合金，陶器，和玻璃的光学构造。原子序数3；原子量6.939；熔点179°C；沸点1,317°C；比重0.534；化合价1 参见 element〔cerium〕A lustrous, iron-gray, malleable metallic rare-earth element that occurs chiefly in the minerals monazite and bastnaesite, exists in four allotropic states, is a constituent of lighter flint alloys, and is used in various metallurgical and nuclear applications. Atomic number 58; atomic weight 140.12; melting point 795°C; boiling point 3,468°C; specific gravity 6.67 to 8.23; valence 3, 4. See table at element 铈：一种有光泽、铁灰色、可延展的金属稀土元素，主要存在于独居石和氟碳铈矿中，以四种同素异形体存在，是轻燧石合金的成分，在冶金和核能工业上有多种应用。原子序数58；原子量140.12；熔点795°C；沸点3,468°C；比重6.67至8.23；化合价3,4 参见 element〔einsteinium〕A synthetic transuranic element first produced by neutron irradiation of uranium in a thermonuclear explosion and now usually produced in the laboratory by irradiating plutonium and other elements. Its longest-lived isotope is Es 254 with a half-life of 276 days. Atomic number 99; melting point 860°C. See table at element 锿：一种人工合成超铀元素，在一次热核子反应的铀中子辐射中首次产生。 现在通常通过在实验室里辐照钚和其它元素而产生，其最不易衰变的同位素是Es254， 它的半衰期为276天，原子序数99；熔点860°C 参见 element〔lead〕Symbol Pb A soft, malleable, ductile, bluish-white, dense metallic element, extracted chiefly from galena and used in containers and pipes for corrosives, solder and type metal, bullets, radiation shielding, paints, and antiknock compounds. Atomic number 82; atomic weight 207.19; melting point 327.5°C; boiling point 1,744°C; specific gravity 11.35; valence 2, 4. See table at element 符号 Pb 铅：一种柔软、有延展性和可锻性的，蓝白色高密度金属元素，主要从方铅矿中提取，用于集装箱、耐腐蚀管道、焊料和字铅、子弹、放射性防护屏、涂料及抗爆化合物。原子序数82；原子量207.19；熔点327.5°C；沸点1,744°C；比重11.35；化合价2或4 参见 element〔uranium〕A heavy silvery-white metallic element, radioactive and toxic, easily oxidized, and having 14 known isotopes of which U 238 is the most abundant in nature. The element occurs in several minerals, including uraninite and carnotite, from which it is extracted and processed for use in research, nuclear fuels, and nuclear weapons. Atomic number 92; atomic weight 238.03; melting point 1,132°C; boiling point 3,818°C; specific gravity 18.95; valence 2, 3, 4, 5, 6. See table at element 铀：银白色的重金属元素，有放射性并且有毒，容易被氧化。已知有14个同位素，其中U238是自然界含量最多的。这种元素存在如沥青铀矿和钒钾铀矿等几种矿中，并从中提炼和加工，主要用于研究，核燃料和核武器。原子序数为92；原子量为238.03；熔点为1,132°C；沸点3,818°C；比重18.95；化合价2，3，4，5，6 参见 element〔thorium〕A radioactive silvery-white metallic element that is recovered commercially from monazite. Its longest-lived isotope, the only one that occurs naturally, is Th 232 with a half-life of 1.41 × 1010 years. It is used in magnesium alloys, and isotope 232 is a source of nuclear energy. Atomic number 90; atomic weight 232.038; approximate melting point 1,750°C; approximate boiling point 4,500°C; approximate specific gravity 11.7; valence 4. See table at element 钍：一种商业上从独居石中提取的放射性银白色金属元素，其自然界中寿命最长的同位素是钍232，半衰期为141×1010年。用于镁合金，同位素232是核能的来源。原子序数90；原子量232.038；熔点约为1,750°C；沸点约为4,500°C；比重约为11.7；原子价为4 参见 element〔sulfur〕A pale yellow nonmetallic element occurring widely in nature in several free and combined allotropic forms. It is used in black gunpowder, rubber vulcanization, the manufacture of insecticides and pharmaceuticals, and in the preparation of sulfur compounds such as hydrogen sulfide and sulfuric acid. Atomic number 16; atomic weight 32.064; melting point (rhombic) 112.8°C; (monoclinic) 119.0°C; boiling point 444.6°C; specific gravity (rhombic) 2.07; (monoclinic) 1.957; valence 2, 4, 6. See table at element 硫，硫磺：一种浅黄色的非金属元素，以几种游离的或结合的同素异形形态广泛存在于自然界中。硫磺可用于黑火药、橡胶的硫化、杀虫剂和药物的制作以及硫化合物（如硫化氢和硫酸）的配制。原子序数16；原子量32.064；熔点（正交晶）112.8°C；（单结晶）119.0°C；沸点444.6°C；比重（正交晶）2.07；（单结晶）1.957；化合价2,4,6 参见 element〔calcium〕A silvery, moderately hard metallic element that constitutes approximately 3 percent of the earth's crust and is a basic component of most animals and plants. It occurs naturally in limestone, gypsum, and fluorite, and its compounds are used to make plaster, quicklime, Portland cement, and metallurgic and electronic materials. Atomic number 20; atomic weight 40.08; melting point 842 to 848°C; boiling point 1,487°C; specific gravity 1.55; valence 2. See table at element 钙：一种银色的、硬度适中的金属元素，约占地壳中各种元素的百分之三，是多数动物和植物的基本组成物之一。自然存在于石灰石、石膏、氟石以及其它化合物之中，用于制造石膏、生石灰、硅酸盐水泥以及冶金和电子材料。原子序数20；原子量40.08；熔点842到848度；沸点1,487度；比重1.55；化学价2 参见 element〔barium〕A soft, silvery-white alkaline-earth metal, used to deoxidize copper and in various alloys. Atomic number 56; atomic weight 137.34; melting point 725°C; boiling point 1,140°C; specific gravity 3.50; valence 2. See table at element 钡：一种柔软，银白色的碱土金属，用来还原铜并用于各种合金。原子序数56；原子量137.34；熔点725°C；沸点1,140°C；比重3.50；化合价2 参见 element〔tungsten〕A hard, brittle, corrosion-resistant, gray to white metallic element extracted from wolframite, scheelite, and other minerals, having the highest melting point and lowest vapor pressure of any metal. Tungsten and its alloys are used in high-temperature structural materials; in electrical elements, notably lamp filaments; and in instruments requiring thermally compatible glass-to-metal seals. Atomic number 74; atomic weight 183.85; melting point 3,410°C; boiling point 5,900°C; specific gravity 19.3 (20°C); valence 2, 3, 4, 5, 6. Also called wolfram See table at element 钨：一种坚硬、易碎 、耐腐蚀的金属元素，颜色从灰到白，主要从黑钨矿、白钨矿和其它矿物中提取出来，它是所有金属中熔点最高，气压最低的金属。钨及钨合金可用于耐温的建筑材料；电子元件，主要是白炽灯丝；以及要求热度上兼容的玻璃至金属的密封装置的仪器。原子序数74；原子量183.85；熔点3,410°C；沸点5,900°C；比重19.3(20°C)；原子价2,3,4,5,6 也作 wolfram 参见 element〔sodium〕A soft, light, extremely malleable silver-white metallic element that reacts explosively with water, is naturally abundant in combined forms, especially in common salt, and is used in the production of a wide variety of industrially important compounds. Atomic number 11; atomic weight 22.99; melting point 97.8°C; boiling point 892°C; specific gravity 0.971; valence 1. See table at element 钠：一种软、轻、极有伸展性的银白色金属元素，和水起爆炸反应，化合的形式较丰富，尤其是以普通盐的形式存在，在很多种重要的工业化合产品的生产中得到广泛应用。原子序数11；原子量22.99；熔点97.8°C；沸点892°C；比重0.971；原子价1 参见 element〔zirconium〕A lustrous, grayish-white, strong, ductile metallic element obtained primarily from zircon and used chiefly in ceramic and refractory compounds, as an alloying agent, and in nuclear reactors as a highly corrosion-resistant alloy. Atomic number 40; atomic weight 91.22; melting point 1,852°C; boiling point 3,578°C; specific gravity 6.56 (20°C); valence 2, 3, 4. See table at element 锆：一种有光泽的、坚固的、可伸展的灰白色金属元素，主要从锆石中提炼。作为合金剂在陶器制造和耐火化合物中大量使用，而在核反应器中用作一种高度抗腐蚀合金。原子序数40；原子量91.22；熔点1,852°C；沸点3,578°C；比重6.56（在20°C时）；化合价2,3,4 参见 element〔cesium〕A soft, silvery-white ductile metal, liquid at room temperature, the most electropositive and alkaline of the elements, used in photoelectric cells and to catalyze hydrogenation of some organic compounds. Atomic number 55; atomic weight 132.905; melting point 28.5°C; boiling point 690°C; specific gravity 1.87; valence 1. See table at element 铯：一种质地柔软的银白色韧性金属，室温时为液体，为最具正电性与碱性的元素，用作光电池和某些有机化合物氢化作用的催化剂。原子序数55；原子量132.905；熔点28.5°C；沸点°C；比重1.87；化合价1 参见 element〔aluminum〕A silvery-white, ductile metallic element, the most abundant in the earth's crust but found only in combination, chiefly in bauxite. Having good conductive and thermal properties, it is used to form many hard, light, corrosion-resistant alloys. Atomic number 13; atomic weight 26.98; melting point 660.2°C; boiling point 2,467°C; specific gravity 2.69; valence 3. See table at element 铝：一种银白色韧性金属元素，在地壳中含量最多，但只出现在混合物主要是铝土矿中。由于有良好的导电导热特性而被用来制造多种硬而轻的抗蚀合金。原子序数13；原子量26.98；熔点660.2°C；沸点2,467°C；比重2.69；化合价3 参见 element〔potassium〕A soft, silver-white, highly or explosively reactive metallic element that occurs in nature only in compounds. It is obtained by electrolysis of its common hydroxide and found in, or converted to, a wide variety of salts used especially in fertilizers and soaps. Atomic number 19; atomic weight 39.102; melting point 63.65°C; boiling point 774°C; specific gravity 0.862; valence 1. See table at element 钾：只以化合物形式存在的柔软的，银白色的，极为活泼的金属元素。这种元素通过将其常见的氢氧化物进行电解而得到，存在于或转化成各种各样的盐，这些盐尤用于制造化肥及肥皂。原子序数为19；原子量39.102；熔点63.65°C；沸点774°C；比重为0.862；原子价为1 参见 element〔seaborgium〕An artificially produced radioactive element with atomic number 106 whose most long-lived isotopes have mass numbers 259, 261, 263, 265, and 266 with half-lives of 0.9, 0.23, 0.8, 16, and 20 seconds, respectively. Also called unnilhexium ：人工产生的放射性元素，原子序数号为106，生命期最长同位素的质量为259、261、263、265和266，半衰期分别为0.9秒、0.23秒、0.8秒、16秒和20秒 也作 unnilhexium〔dubnium〕An artificially produced radioactive element with atomic number 105 whose most long-lived isotopes have mass numbers of 258, 261, 262, and 263 with half-lives of 4.2, 1.8. 34, and 30 seconds, respectively. Also called unnilpentium ：人造放射性元素，原子序数号为105，生命期最长同位素的质量为258、261、262和263，半衰期分别为4.2秒、1.8秒、34秒和30秒 也作 unnilpentium〔vanadium〕A bright white, soft, ductile metallic element found in several minerals, notably vanadinite and carnotite, having good structural strength and used in rust-resistant high-speed tools, as a carbon stabilizer in some steels, as a titanium-steel bonding agent, and as a catalyst. Atomic number 23; atomic weight 50.942; melting point 1,890°C; boiling point 3,000°C; specific gravity 6.11; valence 2, 3, 4, 5. See table at element 钒：存在于多种矿物质中，特别是钒铅矿和钒钾钠矿中的一种亮白色、柔软且可延展的金属元素，具有良好的结构强度，用于防锈的高速工具，例如在某些金属中的炭稳定剂，作为钛金属的黏结剂，以及作为催化剂。原子序数23；原子量50.942；熔点1,890°C；沸点3,000°C；比重6.11；原子价2，3，4，5 参见 element〔samarium〕A silvery or pale gray metallic rare-earth element found in monazite and bastnaesite and used as a dopant for laser materials, in infrared absorbing glass, and as a neutron absorber in certain nuclear reactors. Atomic number 62; atomic weight 150.35; melting point 1,072°C; boiling point 1,791°C; specific gravity (approximately) 7.50; valence 2, 3. See table at element 钐：一种银色或灰色稀土金属元素，含于独居石和氟碳铈矿中，用于激光制品掺杂剂，红外线吸光玻璃，在一些核反应堆中作中子吸收剂。原子序数62；原子量150.35；熔点1,072°C；沸点1,791°C；比重约7.50；化合价2，3 参见 element〔rhodium〕A hard, durable, silvery-white metallic element that is used to form high-temperature alloys with platinum and is plated on other metals to produce a durable corrosion-resistant coating. Atomic number 45; atomic weight 102.905; melting point 1,966°C; boiling point 3,727°C; specific gravity 12.41; valence 2, 3, 4, 5, 6. See table at element 铑：一种坚硬，延展性的，银白色金属元素，用于与铂形成高温合金并涂于其它金属上以产生具坚固的抗腐蚀涂层。原子序数45；原子重量102.905；熔点1,966°C；沸点3,727°C；比重12.41；化合价2，3，4，5，6 参见 element〔lawrencium〕A short-lived, radioactive synthetic transuranic element produced from californium and having isotopes with mass numbers 255 through 260 and half-lives of a few seconds to three minutes; atomic number 103. See table at element 铹：一种寿命期短的、人工合成的放射性超铀元素，从锎中生成，有质量从255到260的同位素，半衰期从几秒钟到三分钟；原子序数103 参见 element〔actinium〕A radioactive element found in uranium ores, used in equilibrium with its decay products as a source of alpha rays. Its longest lived isotope is Ac 227 with a half-life of 21.7 years. Atomic number 89; melting point 1,050°C; boiling point (estimated) 3,200°C; specific gravity (calculated) 10.07; valence 3. See table at element 锕：一种在铀矿中发现的放射性元素，作为阿尔法射线能源增入点用于与其衰变产物的平衡过程中，其最长的活同位素是半衰期为21.7年的锕227。原子序数为89；熔点为1,050摄氏度；（估计的）沸点为3,200摄氏度；（计算出的）比重为10.07；原子价为3 参见 element〔strontium〕A soft, silvery, easily oxidized metallic element that ignites spontaneously in air when finely divided. Strontium is used in pyrotechnic compounds and various alloys. Atomic number 38; atomic weight 87.62; melting point 769°C; boiling point 1,384°C; specific gravity 2.54; valence 2. See table at element 锶：一种银色易氧化的软金属，被分割时能在空气中自燃。锶被用于烟火材料的复合物和各种合金。原子序数为38；原子量为87.62；熔点为769°C；沸点为1,384°C；比重为2.54；化合价为2 参见 element〔neon〕Symbol Ne A rare, inert gaseous element occurring in the atmosphere to the extent of 18 parts per million and obtained by fractional distillation of liquid air. It is colorless but glows reddish orange in an electric discharge and is used in display and television tubes. Atomic number 10; atomic weight 20.183; melting point -248.67°C; boiling point -245.95°C. See table at element 符号 Ne 氖：稀有的惰性气体元素，在空气中以百万分之十八的比例存在，液态空气经分馏后得到。常无色，通电流时发红橙光。用于屏幕和电视显像管。原子序数10；原子量20.183；熔点-248.67°C；沸点-245.95°C 参见 element〔indium〕A soft, malleable, silvery-white metallic element found primarily in ores of zinc and tin, used as a plating over silver in making mirrors, in plating aircraft bearings, and in compounds for making transistors. Atomic number 49; atomic weight 114.82; melting point 156.61°C; boiling point 2,000°C; specific gravity 7.31; valence 1, 2, 3. See table at element 铟：一种较软、可塑性强的银白色金属物质，主要存在于锌矿床和锡矿床中，制造镜子时镀在水银上，也可镀于飞行器表面，其合金可以做晶体管。原子序数为49；原子量114.82；熔点是156.61°C；沸点为2,000°C；比重7.31；原子价为1,2,3 参见 element〔gold〕Symbol Au A soft, yellow, corrosion-resistant element, the most malleable and ductile metal, occurring in veins and alluvial deposits and recovered by mining or by panning or sluicing. A good thermal and electrical conductor, gold is generally alloyed to increase its strength, and it is used as an international monetary standard, in jewelry, for decoration, and as a plated coating on a wide variety of electrical and mechanical components. Atomic number 79; atomic weight 196.967; melting point 1,063.0°C; boiling point 2,966.0°C; specific gravity 19.32; valence 1, 3. See table at element 符号 Au 黄金：一种软的，黄色的，抗腐蚀的物质，是最具有延展性的金属并能抽成丝，产于矿藏和冲积层中，通过开采或淘砂可以找到它，是热和电的良好导体。黄金中一般掺入其他物质以增加强度，经常被用作衡量国际货币的标准，也被制成珠宝作为装饰品，同时被广泛用作各种电子和机械元件的镀层材料。原子序数79；原子量196.967；熔点1,063.0°C；沸点2,966.0°C；比重19.32；化合价为1，3 参见 element〔transactinide〕Of or belonging to the series of elements whose atomic numbers are greater than 103.超锕系的：属于或原子序数大于103的一系列元素的〔copper〕Symbol Cu A ductile, malleable, reddish-brown metallic element that is an excellent conductor of heat and electricity and is widely used for electrical wiring, water piping, and corrosion-resistant parts, either pure or in alloys such as brass and bronze. Atomic number 29; atomic weight 63.54; melting point 1,083°C; boiling point 2,595°C; specific gravity 8.96; valence 1, 2. See table at element 符号 Cu 铜：一种有韧性、可延展的红棕色金属元素，是热和电的极好导体，广泛用于电线、水管及防腐蚀零件中，其形式可以是纯铜也可以是黄铜或青铜合金。原子序数为29；原子量为63.54；熔点1,083°C；沸点2,595°C；比重8.96；原子价为1,2 参见 element |
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