มีผลลัพธ์ที่ไม่แสดงผลอยู่ | atomic number | จำนวนประจุบวกหรือโปรตอนในนิวเคลียสของอะตอม หรือเท่ากับจำนวนอีเล็กตรอนที่ล้อมรอบอะตอมอย่างปกติ |
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| | Atomic number, Z | เลขเชิงอะตอม, จำนวนโปรตอนภายในนิวเคลียสของอะตอมใดๆ และเป็นสิ่งชี้บอกตำแหน่งของธาตุในตารางพีริออดิก [นิวเคลียร์] | | Atomic Number | เลขอะตอม, อะตอมิกนัมเบอร์, อะตอมมิคนัมเบอร์ [การแพทย์] | | atomic number | เลขอะตอม, เลขแสดงจำนวนโปรตอนในอะตอมของธาตุ [พจนานุกรมศัพท์ สสวท.] |
| | | | | เลขอะตอม | [lēk atøm] (n, exp) EN: atomic number |
| | atomic number | (n) the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element | | actinium | (n) a radioactive element of the actinide series; found in uranium ores, Syn. Ac, atomic number 89 | | aluminum | (n) a silvery ductile metallic element found primarily in bauxite, Syn. atomic number 13, Al, aluminium | | americium | (n) a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms, Syn. atomic number 95, Am | | antimony | (n) a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite, Syn. Sb, atomic number 51 | | argon | (n) a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere, Syn. Ar, atomic number 18 | | arsenic | (n) a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar, Syn. atomic number 33, As | | astatine | (n) a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium, Syn. At, atomic number 85 | | barium | (n) a soft silvery metallic element of the alkali earth group; found in barite, Syn. atomic number 56, Ba | | berkelium | (n) a radioactive transuranic element; discovered by bombarding americium with helium, Syn. atomic number 97, Bk | | beryllium | (n) a light strong brittle grey toxic bivalent metallic element, Syn. Be, glucinium, atomic number 4 | | bismuth | (n) a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals, Syn. Bi, atomic number 83 | | bohrium | (n) a transuranic element, Syn. element 107, Bh, atomic number 107 | | boron | (n) a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder, Syn. atomic number 5, B | | bromine | (n) a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water, Syn. Br, atomic number 35 | | cadmium | (n) a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores, Syn. atomic number 48, Cd | | calcium | (n) a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals, Syn. atomic number 20, Ca | | californium | (n) a radioactive transuranic element; discovered by bombarding curium with alpha particles, Syn. atomic number 98, Cf | | carbon | (n) an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds, Syn. atomic number 6, C | | cerium | (n) a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group, Syn. Ce, atomic number 58 | | cesium | (n) a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal, Syn. Cs, caesium, atomic number 55 | | chlorine | (n) a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water), Syn. Cl, atomic number 17 | | chromium | (n) a hard brittle multivalent metallic element; resistant to corrosion and tarnishing, Syn. Cr, atomic number 24 | | cobalt | (n) a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition, Syn. atomic number 27, Co | | copper | (n) a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor, Syn. atomic number 29, Cu | | curium | (n) a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei, Syn. atomic number 96, Cm | | darmstadtium | (n) a radioactive transuranic element, Syn. atomic number 110, element 110, Ds | | dubnium | (n) a transuranic element, Syn. element 105, hahnium, Db, atomic number 105 | | dysprosium | (n) a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic, Syn. atomic number 66, Dy | | einsteinium | (n) a radioactive transuranic element produced by bombarding plutonium with neutrons, Syn. Es, atomic number 99, E | | erbium | (n) a trivalent metallic element of the rare earth group; occurs with yttrium, Syn. atomic number 68, Er | | europium | (n) a bivalent and trivalent metallic element of the rare earth group, Syn. atomic number 63, Eu | | fermium | (n) a radioactive transuranic metallic element produced by bombarding plutonium with neutrons, Syn. Fm, atomic number 100 | | fluorine | (n) a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite, Syn. atomic number 9, F | | francium | (n) a radioactive element of the alkali-metal group discovered as a disintegration product of actinium, Syn. Fr, atomic number 87 | | gadolinium | (n) a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group, Syn. atomic number 64, Gd | | gallium | (n) a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores, Syn. Ga, atomic number 31 | | germanium | (n) a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite, Syn. atomic number 32, Ge | | gold | (n) a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia, Syn. Au, atomic number 79 | | hafnium | (n) a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons, Syn. atomic number 72, Hf | | hassium | (n) a radioactive transuranic element, Syn. Hs, atomic number 108, element 108 | | helium | (n) a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas), Syn. atomic number 2, He | | holmium | (n) a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds, Syn. Ho, atomic number 67 | | hydrogen | (n) a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe, Syn. atomic number 1, H | | indium | (n) a rare soft silvery metallic element; occurs in small quantities in sphalerite, Syn. In, atomic number 49 | | iodine | (n) a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks), Syn. I, atomic number 53, iodin | | iridium | (n) a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium, Syn. Ir, atomic number 77 | | iron | (n) a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood, Syn. Fe, atomic number 26 | | krypton | (n) a colorless element that is one of the six inert gasses; occurs in trace amounts in air, Syn. Kr, atomic number 36 | | lanthanum | (n) a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth, Syn. atomic number 57, La |
| | 金 | [jīn, ㄐㄧㄣ, 金] gold Au, transition metal, atomic number 79; metal; money; the Jurchen Jin dynasty (1115-1234); surname Jin or Kim #473 [Add to Longdo] | | 银 | [yín, ㄧㄣˊ, 银 / 銀] silver Ag, transition metal, atomic number 47 #1,371 [Add to Longdo] | | 铁 | [tiě, ㄊㄧㄝˇ, 铁 / 鐵] iron Fe, transition metal, atomic number 26 #1,866 [Add to Longdo] | | 铜 | [tóng, ㄊㄨㄥˊ, 铜 / 銅] copper Cu, transition metal, atomic number 29 #2,027 [Add to Longdo] | | 铝 | [lǚ, ㄌㄩˇ, 铝 / 鋁] aluminum Al, metal, atomic number 13 #3,564 [Add to Longdo] | | 钙 | [gài, ㄍㄞˋ, 钙 / 鈣] calcium Ca, alkaline earth, atomic number 20 #4,390 [Add to Longdo] | | 氧 | [yǎng, ㄧㄤˇ, 氧] oxygen O, atomic number 8 #4,509 [Add to Longdo] | | 锌 | [xīn, ㄒㄧㄣ, 锌 / 鋅] zinc Zn, transition metal, atomic number 30 #6,119 [Add to Longdo] | | 钠 | [nà, ㄋㄚˋ, 钠 / 鈉] sodium Na, alkali metal 鹼性金屬|碱性金属 with atomic number 11 #6,688 [Add to Longdo] | | 铅 | [qiān, ㄑㄧㄢ, 铅 / 鉛] lead Pb, metal, atomic number 82 #7,204 [Add to Longdo] | | 磷 | [lín, ㄌㄧㄣˊ, 磷] phosphorus P, nonmetal, atomic number 15; water in rocks #7,431 [Add to Longdo] | | 碳 | [tàn, ㄊㄢˋ, 碳] carbon C, atomic number 6 #7,769 [Add to Longdo] | | 氮 | [dàn, ㄉㄢˋ, 氮] nitrogen N, atomic number 7 #8,091 [Add to Longdo] | | 氯 | [lǜ, ㄌㄩˋ, 氯] chlorine Cl, halogen with atomic number 17 #8,221 [Add to Longdo] | | 锡 | [xī, ㄒㄧ, 锡 / 錫] tin Sn, metal, atomic number 50; Taiwan pr. xi2 #8,226 [Add to Longdo] | | 氟 | [fú, ㄈㄨˊ, 氟] fluorine F, halogen with atomic number 9 #8,836 [Add to Longdo] | | 氖 | [nǎi, ㄋㄞˇ, 氖] neon Ne, noble gas, atomic number 10 #8,870 [Add to Longdo] | | 钾 | [jiǎ, ㄐㄧㄚˇ, 钾 / 鉀] potassium K, alkali metal 鹼性金屬|碱性金属 with atomic number 19 #9,022 [Add to Longdo] | | 钡 | [bèi, ㄅㄟˋ, 钡 / 鋇] barium Ba, alkaline earth, atomic number 56 #10,566 [Add to Longdo] | | 镁 | [měi, ㄇㄟˇ, 镁 / 鎂] magnesium Mg, alkaline earth metal, atomic number 12 #10,784 [Add to Longdo] | | 氢 | [qīng, ㄑㄧㄥ, 氢 / 氫] hydrogen H, atomic number 1 #10,793 [Add to Longdo] | | 硫 | [liú, ㄌㄧㄡˊ, 硫] sulfur S, nonmetal, atomic number 16 #10,873 [Add to Longdo] | | 碘 | [diǎn, ㄉㄧㄢˇ, 碘] iodine I, halogen with atomic number 53 #10,889 [Add to Longdo] | | 硅 | [guī, ㄍㄨㄟ, 硅] silicon Si, metalloid, atomic number 14 #11,266 [Add to Longdo] | | 铂 | [bó, ㄅㄛˊ, 铂 / 鉑] platinum Pt, transition metal, atomic number 78 #12,350 [Add to Longdo] | | 镍 | [niè, ㄋㄧㄝˋ, 镍 / 鎳] nickel Ni, transition metal, atomic number 28 #12,744 [Add to Longdo] | | 钛 | [tài, ㄊㄞˋ, 钛 / 鈦] titanium Ti, transition metal, atomic number 22 #12,757 [Add to Longdo] | | 锰 | [měng, ㄇㄥˇ, 锰 / 錳] manganese Mn, transition metal, atomic number 25 #14,520 [Add to Longdo] | | 铬 | [gè, ㄍㄜˋ, 铬 / 鉻] chromium Cr, transition metal, atomic number 24 #16,644 [Add to Longdo] | | 汞 | [gǒng, ㄍㄨㄥˇ, 汞] mercury Hg, transition metal, atomic number 80 #17,266 [Add to Longdo] | | 锂 | [lǐ, ㄌㄧˇ, 锂 / 鋰] lithium Li, alkali metal 鹼性金屬|碱性金属 with atomic number 3 #17,391 [Add to Longdo] | | 硒 | [xī, ㄒㄧ, 硒] selenium S, nonmetal, atomic number 34 #17,578 [Add to Longdo] | | 钼 | [mù, ㄇㄨˋ, 钼 / 鉬] molybdenum Mo, transition metal, atomic number 42 #18,007 [Add to Longdo] | | 钨 | [wū, ㄨ, 钨 / 鎢] tungsten W (wolfram), transition metal, atomic number 74 #19,712 [Add to Longdo] | | 钒 | [fán, ㄈㄢˊ, 钒 / 釩] vanadium V, transition metal, atomic number 23 #21,513 [Add to Longdo] | | 砷 | [shēn, ㄕㄣ, 砷] arsenic As, metalloid, atomic number 33 #22,085 [Add to Longdo] | | 镉 | [gé, ㄍㄜˊ, 镉 / 鎘] cadmium Cd, transition metal, atomic number 48 #22,266 [Add to Longdo] | | 钪 | [kàng, ㄎㄤˋ, 钪 / 鈧] scandium Sc, transition metal, atomic number 21 #25,344 [Add to Longdo] | | 硼 | [péng, ㄆㄥˊ, 硼] boron B, metalloid, atomic number 5 #26,975 [Add to Longdo] | | 溴 | [xiù, ㄒㄧㄡˋ, 溴] bromine Br, halogen with atomic number 35 #30,845 [Add to Longdo] | | 氡 | [dōng, ㄉㄨㄥ, 氡] radon Rn, noble gas, atomic number 86 #31,040 [Add to Longdo] | | 氩 | [yà, ㄧㄚˋ, 氩 / 氬] argon Ar, noble gas, atomic number 18 #32,260 [Add to Longdo] | | 钴 | [gǔ, ㄍㄨˇ, 钴 / 鈷] cobalt Co, transition metal, atomic number 27 #33,190 [Add to Longdo] | | 氦 | [hài, ㄏㄞˋ, 氦] helium He, noble gas, atomic number 2 #33,632 [Add to Longdo] | | 锗 | [zhě, ㄓㄜˇ, 锗 / 鍺] germanium Ge, metal or metalloid, atomic number 32 #33,699 [Add to Longdo] | | 镭 | [léi, ㄌㄟˊ, 镭 / 鐳] radium Ra, alkaline earth, atomic number 88 #34,678 [Add to Longdo] | | 氪 | [kè, ㄎㄜˋ, 氪] krypton Kr, noble gas, atomic number 36 #34,872 [Add to Longdo] | | 锑 | [tī, ㄊㄧ, 锑 / 銻] antimony Sb 銻|锑, metalloid, atomic number 51 #35,263 [Add to Longdo] | | 铱 | [yī, ㄧ, 铱 / 銥] iridium Ir, transition metal, atomic number 77 #35,795 [Add to Longdo] | | 钯 | [bǎ, ㄅㄚˇ, 钯 / 鈀] palladium Pd, transition metal, atomic number 46 #38,225 [Add to Longdo] |
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