化学元素介绍_孟毕酱同学化学作业《化学元素介绍》归类分享_化学_孟毕酱
编辑： admin 2017-26-06
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化学元素介绍导读：
学好数理化走遍天下都不怕，这说明化学很重要，那么同学们就要多多练习化学作业，我们就一起来看看孟毕酱同学的这道化学题，将给我们带来了哪些化学解题方法呢？化学元素介绍这道题主要考察的是化学基本知识，是孟毕酱精心归类总结的化学作业题——《化学元素介绍：谁能介绍介绍化学元素？》，指导老师是宰老师，涉及到的化学课本知识为：谁能介绍介绍化学元素？，这道题的难度适中，考点为化学元素介绍：谁能介绍介绍化学元素？的相关化学知识点，用所学的相关化学知识来进行解答，下面是孟毕酱化学作业的详细归类分享（本道题以问答模式展开）。
题目：谁能介绍介绍化学元素？
化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
看看我们周围的世界,从遥望无际的广袤宇宙,到身边的点点滴滴,所有这些自然界的物体不论形态如何,功能如何,它们都是由一些最简单、最基本的物质――化学元素组成.化学元素是构成万物的“基石”,这是公认无疑的客观事实.但是,你可知道,这个认识却是人们经过许多世纪的努力才获得的.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
早在公元前12世纪,即我国殷周之交的奴隶制全盛时期就产生了物质是由金、木、水、火、土组成的所谓“五行”学说.五行学说认为金、木、水、火、土可在一个永不终止的循环过程中巨变,它们之间有着错综复杂的作用,这些作用的结果产生了世界上形形色色的物质.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
公元前5世纪,古希腊哲学家留基伯和他的学生德漠克利特提出了“原子学说”.他们认为,万物都是由极小的不可再分的粒子组成的,这种粒子称为原子,意即不可再分的原始粒子.到了公元前4世纪,古希腊哲学家亚里士多德一方面继承了古希腊的“四元素”（指土、空气、水、火）学说,另一方面又提出了所谓“原性说”.他认为“四元素”学说中的每一种元素都是由热、冷、干、湿四种“原性”中的两种所组成,其关系如图.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
直到17世纪中叶,随着采矿、冶金、火药等化学工艺的进一步发展,人们积累了大量的科学资料,才为进一步揭开物质组成之谜打下了基础.也就在这时,产生了早期的朴素的化学元素理论.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
1661年,被称为化学之祖的英国科学家波义尔综合分析了前人积累的资料,并反复进行科学实验后,摆脱了古老元素学说的束缚,指出：“元素是组成复杂物体的和在分解复杂物体时最后得到的那种简单的物体”.他还指出：“化学的目的是认识物质的结构,而认识的方法是分析,即把物质分解为元素”.从此,波义尔纠正了古代错误的“性质”元素学说,第一次为元素确定了科学的概念,建立了唯物主义的“物质”元素理论.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
19世纪,道尔顿的原子论、阿佛加德罗的分子论建立后,人们才认识到一切物质都是由原子通过不同方式结合而成的.于是,元素的概念被定义为“同种类的原子”.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
19世纪末,20世纪初,电子的发现以及原子核组成的奥秘被揭开后,人们认识到,同种元素的原子核里所含的质子数目是相同的,但中子数可以不同.因为中子数不同,所以同一元素可以有质量不同的几种原子.但决定元素化学性质的主要因素不是原子的质量而是原子核外的电子数,而核外电子数又取决于核电荷数（即核内质子数）,所以质子数相同的一类原子,其化学性质是相同的.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
根据现代的观念,元素是原子核内质子数相同的一类原子的总称.也就是说原子的核电荷（原子核中的质子数）是决定元素内在联系的关键.由同种元素组成的物质称为单质,如氧气、铝、铁等；由不同种元素组成的物质称为化合物,如盐、水、硫酸等.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
现今为止,人们已经发现了109种化学元素,正是这一百余种“基石”组成了千奇百怪的物质形态及功能,丰富和充实了我们的生活.互助这道作业题的同学还参与了下面的作业题
题1： 求所有化学元素的介绍RT要说出化学性质颜色气味如钠银白色固体无色化学性质活泼类似这样的[化学科目]
1.H 氢 qīng 1.00794（7） 氢[hydrogen],金属氢[Hydrogenium].气体元素符号.无色无臭无味.是元素中最轻的.工业上用途很广.{氢气} 1H 氕[protium].原子核中有一个质子,是氢的主要成分,普通的氢中含有99.98%的氕.D 或21H 氘[deuterium].原子核中有一个质子和一个中子,普通的氢中含有0.02%的氘.用于热核反应.{重氢} T或31H 氚[tritium].原子核中有一个质子和两个中子.有放射性.{超重氢} 2.He 氦 haì 4.002602（2） 氦[helium].气体元素符号.无色无臭无味,在大气层含量极少,化学性质极不活泼.用来填充灯泡和霓虹灯管,也用来制造泡沫塑料.液态的氦常用做制冷剂.{氦气} 3.Li 锂 lǐ 6.941(2) 锂[lithium].金属元素符号.银白色,在空气中易氧化而变黑,质软,是金属中最轻的 化学性质活泼.用于原子能工业和冶金工业,也用来制特种合金、特种玻璃等.4.Be 铍 pí 9.012182（3） 铍[beryllium].金属元素符号.灰白色,质硬而轻.用于原子能工业中,铍铝合金用来制 飞机、火箭等.5.B 硼 pēng 10.811 (5) 硼[Boron].金属元素符号.黑色或银灰色固体.晶体硼为黑色,熔点约2300°C,沸点3658°C,密度2.34克/厘米³,硬度仅次于金刚石,较脆.6.C 碳 tan 12.011 (6) 碳[Carbonium].碳是一种非金属元素.碳是一种很常见的元素,它以多种形式广泛存在于大气和地壳之中.碳单质很早就被人认识和利用,碳的一系列化合物——有机物更是生命的根本.7.N 氮 dàn 14.007 (7) 氮[nitrogen].气体元素符号.元素名来源于希腊文,原意是“硝石”.1772年由瑞典药剂师舍勒和英国化学家卢瑟福同时发现,后由法国科学家拉瓦锡确定是一种元素.氮在地壳中的含量为0.0046%,自然界绝大部分的氮是以单质分子氮气的形式存在于大气中,氮气占空气体积的78%.氮的最重要的矿物是硝酸盐.氮有两种天然同位素：氮14和氮15,其中氮14的丰度为99.625%.8.O 氧 yǎng 15.9994 氧[Oxygenium].气体元素.旧译作氱.希腊文的意思是“酸素”,该名称是由法国化学家拉瓦锡所起,原因是拉瓦锡错误地认为,所有的酸都含有这种新气体.现在日文里氧气的名称仍然是“酸素”.而台语受到台湾日治时期的影响,也以“酸素”之日语发音称呼氧气.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
氟熔点为-219.6 ℃,沸点为-188.1℃,密度为1.696 g/L（0℃).淡黄色气体,是最活泼的非金属元素.用于制氟化试剂以及金属冶炼中的助熔剂等.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
氖,稀有气体元素之一,无色,无臭,无味,气体密度0.9092克/升,液体密度1.204克/立方厘米,熔点-248.67℃,沸点-245.9℃,化学性质极不活泼,电离能21.564电子伏特,不能燃烧,也不助燃,在一般情况下不生成化合物11 Na 钠 22.9898 钠单质的性质物理性质化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
钠单质很软,可以用小刀切割.切开外皮后,可以看到钠具有银白色的金属光泽.钠是热和电的良导体.钠的密度是0.97g/cm3,比水的密度小,钠的熔点是97.81℃,沸点是882.9℃.钠单质还具有良好的延展性.化学性质化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
钠原子的最外层只有1个电子,很容易失去.因此,钠的化学性质非常活泼,在与其他物质发生氧化还原反应时,都是由0价升为+1价.金属性强.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
12 Mg 镁 24.305 物理性质：银白色的金属,密度1.738克/厘米3,熔点648.9℃.沸点1090℃.化合价+2,电离能7.646电子伏特,是轻金属之一,具有延展性,金属镁无磁性,且有良好的热消散性.[编辑本段]化学性质镁条燃烧生成氧化镁具有比较强的还原性,能与热水反应放出氢气,燃烧时能产生眩目的白光,化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
13 Al 铝 26.982 元素符号：Al 英文名：Aluminum 中文名：铝 相对原子质量：26.9815 常见化合价：+3 电负性：1.61 外围电子排布：3s2 3p1 核外电子排布：2,8,3 同位素及放射线：Al-26[730000y] *Al-27 Al-28[2.3m] 电子亲合和能：48 KJ·mol-1 第一电离能：577.6 KJ·mol-1 第二电离能：1817 KJ·mol-1 第三电离能：2745 KJ·mol-1 单质密度：2.702 g/cm3 单质熔点：660.37 ℃ 单质沸点：2467 ℃ 原子半径：1.82 埃 离子半径：0.51(+3) 埃 共价半径：1.18 埃 常见化合物：Al₂O₃ AlCl₃ Al₂S₃ NaAlO₂ Al₂(SO₄)₃ Al(OH)₃ 14 Si 硅 28.085 15 P 磷 30.974 16 S 硫 32.06 17 Cl 氯 35.453 18 Ar 氩 39.94 19 K 钾 39.098题2： .云里雾里的=
http://hi.baidu.com/19920904/blog/item/f1e4b24b4d5d6ff182025c92.html题3： 碳英文介绍越详细越好,全部英文.[英语科目]
Carbon is a nonmetallic element, located in the periodic table of the second cycle of IVA family. Latin for Carbonium, meaning "coal, charcoal." Chinese characters "carbon" element of the word from the cyclical nature of charcoal, "carbon" word plus the word next to the stone structure, from the "carbon" pronunciation.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Carbon is a very common element, it is widespread in many forms in the atmosphere and the earth's crust into. Elemental carbon has long been recognized and utilized, a series of carbon compounds - organic matter is essential for life. Carbon is pig iron, wrought iron and steel one of the ingredients. Carbon can be chemically combined to form a large number of self-compounds, biologically and commercially important molecules. Vivo most of the molecules contain carbon [1] element.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Carbon compounds in general obtained from fossil fuels, and then isolated and further synthesized a variety of products needed for production and daily life, such as ethylene, plastics and so on.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
The existence of many forms of carbon, there are single-crystalline nature of carbon, such as diamond, graphite; whether amorphous carbon such as coal; a complex organic compounds, such as plants and animals, etc.; carbonate, such as marble. One quality of the physical and chemical properties of carbon depends on its crystal structure. High hardness of diamond and soft creamy graphite crystal structure is different, each have their own appearance, density, melting point and so on.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Room temperature, the chemical properties of a single mass of carbon is not lively, not soluble in water, dilute acid, dilute alkali and organic solvents; different reactions under high temperature and oxygen to produce carbon dioxide or carbon monoxide; in halogen only fluoride with a direct response to a single mass of carbon; in the next heat single mass of carbon be easier to acid oxidation; at a high temperature, carbon can also work with many metals the reaction of metal carbides. Carbon has a reductive, metal smelting at high temperatures may be. Chemical symbol: C Element Atomic Weight: 12.01 Use of proton: 6 Atomic Number: 6 Cycle: 2 Family: IVA Electron shell distribution :2-4 Atomic volume: 4.58 cubic centimeters / mole Atomic radius (calculated): 70 (67) pm Covalent radius: 77 pm Van der Waals radius: 170 pm Electron configuration: 1s22s22p2 Electronic energy levels in each row of cloth: 2,4 Oxidation Price (oxide): 4,3,2 (weak acid) Color and appearance: black (graphite), colorless (diamond) State of matter: solid-state Physical Properties: Anti-Magnetic Melting point: about 3550 ℃ (diamond) Boiling point: about 4827 ℃ (sublimation) Molar volume: 5.29 × 10-6m3/mol The content of elements in the sun: (ppm) 3000 The content of elements in seawater: (ppm) the surface of the Pacific Ocean 23 Content of elements in the Earth's crust: (ppm) 4800 Mohs hardness: 1-2 graphite, diamond 10 Oxidation state: mainly -4, C +2, C +4 (there are other oxidation state) Bond can be: (kJ / mol) CH 411 CC 348 C = C 614 C ≡ C 839 C = N 615 C ≡ N 891 C = O 745 C ≡ O 1074 Unit cell parameters: a = 246.4 pm b = 246.4 pm c = 671.1 pm α = 90 ° β = 90 ° γ = 120 °化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Ionization energy: (kJ / mol) M - M + 1086.2 M + - M2 + 2352 M2 + - M3 + 4620 M3 + - M4 + 6222 M4 + - M5 + 37827 M5 + - M6 + 47270 Single Quality Density: 3.513 g/cm3 (diamond), 2.260 g/cm3 (graphite, 20 ℃) Electronegativity: 2.55 (Pauling scale) Specific heat: 710 J / (kg · K) Conductivity: 0.061 × 10-6 / (m ohm)化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Thermal conductivity: 129 W / (m · K) first ionization energy 1086.5 kJ / mol 2nd ionization energy 2352.6 kJ / mol 3rd ionization energy 4620.5 kJ / mol fourth ionization energy 6222.7 kJ / mol fifth ionization energy 37831 kJ / mol sixth ionization energy 47277.0 kJ / mol化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Bond: carbon atoms are generally four price, which requires four single-electron, but the ground state is only two single-electron, it is always carried out when the bonding hybrid. The most common form of hybrid sp3 hybridization, four valence electrons are fully utilized, evenly distributed in the four tracks, the part of other sexual hybrid. Such structures are completely symmetrical, bonding is stable after the σ bonds and no lone electron pairs of exclusion, very stable. Diamond all the carbon atoms they are all for such a hybrid approach in bonding. Alkane carbon atoms are also belong to this category.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
According to the needs of sp2 carbon atoms can also be carried out, or sp hybridized. Both methods appear in the re-key into the case, without the hybrid p-orbital perpendicular to the hybrid orbital with the neighboring atom p orbital into the π bond. Alkene double bond connected with the carbon atoms are sp 2 hybridized. Since sp2 hybrid can make atoms coplanar, when there is more than double bond, the molecular plane perpendicular to all the p orbital overlap is likely to form a conjugated system. Benzene is the most typical conjugated system, it has lost some of the nature of the double bond. All the carbon atoms in graphite are in a large conjugation system, each one has a lamellar. [Edit this paragraph] of carbon isotope化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
At present a total of 12 kinds of known isotopes, with carbon-8 to C 19, in which the carbon 12 and carbon-13 is stabilized, and the rest are radioactive, which carbon-14 half-lives of over 5000 years, others are less than half full hours. In the Earth's natural world, the carbon 12 content in all accounted for 98.93% of carbon, carbon 13 has 1.07%. C, atomic weight of carbon 12,13 to take two kinds of isotopic abundance-weighted average, the general calculations take 12.01. Carbon 12 is the International System of Units as defined in Moore's standards to contain 12 grams of carbon 12 atoms in a mole number. Carbon-14 has a longer half-life as has been widely used to determine the age of antiquities. [Edit this paragraph] in the form of elemental carbon化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
The two most common simple substance is high hardness of diamond and graphite soft and creamy, their crystal structure and bond type are different. Each diamond is tetrahedral four-coordinated carbon, similar to aliphatic compounds; graphite each carbon is a triangle with three bits, can be viewed an unlimited number of benzene rings fused together. 1. Diamond (diamond) Diamond Structure化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
The most robust of a carbon structure in which the carbon atoms arranged in the form of crystal structure, each carbon atom with the other four carbon atoms tightly bonded, into the spatial network structure, and ultimately form a kind of hardness, poor activity solids. Chao Guo diamond melting point of 3500 ℃, the equivalent of some stellar surface temperature. Main function: decoration, cutting metal materials 2. Graphite (graphite)化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Graphite is a dark gray metallic luster and opaque sweetlips flaky solid. Soft, with creamy feel, with excellent electrical properties. Graphite planar layered structure of carbon atoms bonded together, bonding layer and the layer of saw relatively weak, so between layers are separated easily be sliding. A major role: production of pencils, electrodes, cables and so on tram 3. Fullerene (fullerene, C60, C72, etc.) In 1985 by the U.S. Ross University of Texas scientists have discovered. Fullerene carbon atoms are spherical dome structure of bond together. 4. Other carbon structures化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Hexagonal diamond (Lonsdaleite, and diamond have the same bond type, but the hexagonal arrangement of atoms, also known as hexagonal diamond) Graphene (graphene, ie single-layer graphite) Carbon nanotubes (Carbon nanotube, it has the typical structural features of layered hollow)化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Monoclinic super-hard carbon (M-carbon, graphite, after low-temperature high-pressure phase, with monoclinic structure, and its hardness close to diamond) Amorphous carbon (Amorphous, not really shaped body, the internal structure of graphite) Zhao graphite (Chaoite, graphite and meteorite collision, in an hexagonal pattern of the atomic arrangement)化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Mercury tetrahedrite ore structure (Schwarzite, due to the emergence of heptagonal, hexagonal layers are distorted to the "negative curvature," saddle-shaped in the hypothetical structure) Carbon fiber (Filamentous carbon, growing chain of small piece of the heap formed by fibers)化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Carbon aerogels (Carbon aerogels, the density of the porous structure of very small, similar to the well-known silicon aerogels)化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Carbon nano-foam (Carbon nanofoam, cobweb-like banding-shaped structure, density is one per cent of the carbon aerogels, there is ferromagnetism) Hexagonal diamond single graphite and carbon nanotubes monoclinic super-hard carbon (M-carbon) [Edit this paragraph] carbon compounds Carbon compounds, only the following compounds are inorganic substances:化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Of carbon oxides, sulfur: carbon monoxide (CO), carbon dioxide (CO2), carbon disulfide (CS2), carbonate, bicarbonate salts, cyanide and its intended range of halogen-halide intended to be halide salts: cyanide (CN) 2, oxygen-cyanide, sulfur, cyanide.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Other carbon-containing compounds are organic compounds. As the carbon atoms to form the keys are relatively stable, the number of organic compounds of carbon, arranged, as well as the type of substituent, position, have a high degree of randomness, resulting in an extremely diverse amount of organic matter in this phenomenon, the present compounds found in human beings accounted for the vast majority of organic matter.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Organic and inorganic very different nature, they are generally flammable, easily soluble in water, the reaction mechanism is very complex, has been the formation of a separate Division - Organic Chemistry. Distribution of carbon found in nature (as in the form of diamond and graphite), is coal, oil, asphalt, limestone and other carbonates, as well as the most important ingredient of all organic compounds in the crust of the content was about 0.027%. Carbon is the dry weight of organisms accounted for the largest proportion of an element. Carbon is also in the form of carbon dioxide in the atmosphere circle the planet and stratosphere. In most of the objects and the presence of carbon in the atmosphere are. [Edit this paragraph] of carbon found in the history of Diamond and graphite have known prehistoric humans. Fullerenes were found in 1985, has since found a number of different arrangement of carbon simple substance. Isotope carbon-14 by United States scientists Martinka doors and Samuel Rubin was discovered in 1940. Hexagonal diamond by United States scientists Galiffo Derong Deere and Yousulama temperature was found in 1967.化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
Monoclinic super-hard carbon scientists from the United States in 1967, Bondi and Cuthbert was found that its crystal structure from Jilin University, Dr. Li Quan and mentor Professor Ma Yanming theory established in 2009.题4： 【化学元素表中每个元素的介绍（要全面）】[化学科目]
1 H氢1.0079 2 He氦4.0026 3 Li锂6.941 4 Be铍9.0122 5 B硼10.811 6 C碳12.011 7 N氮14.007 8 O氧15.999 9 F氟18.998 10 Ne氖20.17 11 Na钠22.989812 Mg镁24.305 13 Al铝26.982 14 Si硅28.085 15 P磷30.974 16 S硫32.06 17 Cl氯35.453 18 Ar氩39.94 19 K钾39.098 20 Ca钙40.08 21 Sc钪44.956 22 Ti钛47.9 23 V 钒50.94 24 Cr铬51.996 25 Mn锰54.938 26 Fe铁55.84 27 Co钴58.9332 28 Ni镍58.69 29 Cu铜63.54 30 Zn锌65.38 31 Ga镓69.72 32 Ge锗72.5 33 As砷74.922 34 Se硒78.9 35 Br溴79.904 36 Kr氪83.8 37 Rb铷85.467 38 Sr锶87.62 39 Y 钇88.906 40 Zr锆91.22 41 Nb铌92.9064 42 Mo钼95.94 43 Tc锝(99) 44 Ru钌161.0 45 Rh铑102.906 46 Pd钯106.42 47 Ag银107.868 48 Cd镉112.41 49 In铟114.82 50 Sn锡118.6 51 Sb锑121.7 52 Te碲127.6 53 I碘126.905 54 Xe氙131.3 55 Cs铯132.905 56 Ba钡137.33 57-71La-Lu镧系57 La镧138.958 Ce铈140.159 Pr镨140.960 Nd钕144.261 Pm钷(147)62 Sm钐150.363 Eu铕151.9664 Gd钆157.2565 Tb铽158.966 Dy镝162.567 Ho钬164.968 Er铒167.269 Tm铥168.970 Yb镱173.0471 Lu镥174.96772 Hf铪178.4 73 Ta钽180.947 74 W钨183.8 75 Re铼186.207 76 Os锇190.277 Ir铱192.2 78 Pt铂195.08 79 Au金196.967 80 Hg汞200.5 81 Tl铊204.3 82 Pb铅207.2 83 Bi铋208.98 84 Po钋(209) 85 At砹(201) 86 Rn氡(222) 87 Fr钫(223) 88 Ra镭226.03 89-103Ac-Lr锕系89 Ac锕(227)90 Th钍232.091 Pa镤231.092 U铀238.093 Np镎(237)94 Pu钚(239,244)95 Am镅(243)96 Cm锔(247)97 Bk锫(247)98 Cf锎(251)99 Es锿(252)100 Fm镄(257)101 Md钔(258)102 No锘(259)103 Lr铹(260)104 Rf钅卢(257)105 Db钅杜(261)106 Sg钅喜(262)107 Bh钅波(263)108 Hs钅黑(262)109 Mt钅麦(265)110 Ds钅达(266)111 Rg钅仑(272)112 Uub(285)113 Uut(284)114 Uuq(289)116 Uuh(292)118 Uuo(293)1 元素周期表中元素及其化合物的递变性规律 1.1 原子半径 （1）除第1周期外,其他周期元素（惰性气体元素除外）的原子半径随原子序数的递增而减小； （2）同一族的元素从上到下,随电子层数增多,原子半径增大.1.2 元素化合价化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
（1）除第1周期外,同周期从左到右,元素最高正价由碱金属+1递增到+7,非金属元素负价由碳族-4递增到-1（氟无正价,氧无+6价,除外）； （2）同一主族的元素的最高正价、负价均相同 1.3 单质的熔点 （1）同一周期元素随原子序数的递增,元素组成的金属单质的熔点递增,非金属单质的熔点递减； （2）同一族元素从上到下,元素组成的金属单质的熔点递减,非金属单质的熔点递增 1.4 元素的金属性与非金属性 （1）同一周期的元素从左到右金属性递减,非金属性递增； （2）同一主族元素从上到下金属性递增,非金属性递减.1.5 最高价氧化物和水化物的酸碱性 元素的金属性越强,其最高价氧化物的水化物的碱性越强；元素的非金属性越强,最高价氧化物的水化物的酸性越强.1.6 非金属气态氢化物化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
元素非金属性越强,气态氢化物越稳定.同周期非金属元素的非金属性越强,其气态氢化物水溶液一般酸性越强；同主族非金属元素的非金属性越强,其气态氢化物水溶液的酸性越弱.1.7 单质的氧化性、还原性化学元素介绍：逆火学习站的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
一般元素的金属性越强,其单质的还原性越强,其氧化物的氧离子氧化性越弱；元素的非金属性越强,其单质的氧化性越强,其简单阴离子的还原性越弱.2.推断元素位置的规律 判断元素在周期表中位置应牢记的规律：（1）元素周期数等于核外电子层数； （2）主族元素的序数等于最外层电子数；化学元素介绍：逆火学习站(img1.72589.com)的孟毕酱同学的作业题：《谁能介绍介绍化学元素？》解题思路
化学元素介绍小结：
通过以上关于孟毕酱同学对化学元素介绍：谁能介绍介绍化学元素？的解题归类详细分享，相信同学们已经对化学元素介绍的相关化学作业考点一定有所收获吧。建议同学们要学会归类总结，并仔细思考孟毕酱同学分享的解答《谁能介绍介绍化学元素？》这道作业题的解题思路，把化学考试中可能涵盖的考点都在平时得到加强训练，才能让自己的化学考试获得好成绩。