题库网 (tiku.one)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:Models of Bonding & Structure B.3 The Metallic Model



 作者: admin   总分: 17分  得分: _____________

答题人: 匿名未登录  开始时间: 23年07月17日 23:30  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which is NOT a charac wmvbif,g3oo ;o6l3 (tteristic property of metals resulting from metallic bonding,lmwooot6i 3 3(bgfv;?

参考答案:     查看本题详细解析

标记此题
2#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Metallic bonding characterizes the bonding present in thy nr ,j0mh0c;-;cq2qnyho) rw e elemental form of the metals on the perio 2;h,qoywh0nn0m ;)y-crc j rqdic table.
1.Describe features of metallic bonding.
2.Describe 3 common properties of metals that result from metallic bonding.
3.Solid sodium chloride is brittle while sodium metal is not. Explain this difference in properties.
参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Metallic bonding is best characterized by the rg mlc2nl,spzu q/e4i, 1jk;,following statement:

参考答案:     查看本题详细解析

标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the followi71vx*86 c v rjmull1ae7d r3dzng is NOT true of metals?

参考答案:     查看本题详细解析

标记此题
5#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Properties of substances can .gkn v et1wmw0; nfcj/, 6m8wlbe related to the type of bonding, including electrical cg/e,j1mn ;8kn. l wwfmvw t0c6onductivity.
1.In part (a) of the table below, state examples of one metallic and one non-metallic substance that are electrically conductive.
2.In part (b) of the table below, draw a diagram that demonstrates the bonding of each substance mentioned in part (a).
3.In part (c) of the table below, state why this bonding structure enables electrical conductivity.

Non-metallic Metallic
(a)Substance with electrical conductivity
(b) Diagram or model of structure
(c) Reason for Conductivity
参考答案:    

标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which characteristic best corresponds to, or indicates, xuu yi+5szj 4zg00f +ithe strength of metallic boz 0giu0j+uzx+ s yif54nding?

参考答案:     查看本题详细解析

标记此题
7#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Titanium, lithium, a q 2dr 4,jkmxj,;2nzqi u2r5hxnd potassium have melting points of 1910$^{\circ}C$,181$^{\circ}C$,and 68$^{\circ}C$,respectively.
1.Outline two characteristics of a metallic element that affect the strength of the metallic bond.
2.In terms of atomic structure, the observed melting points of titanium, lithium, and potassium listed above.
参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Based on periodic trends, which series correctly orders the elements by incr9h ) pyliu4/zjeasing melting poin p)/u4l hzyj9its?

参考答案:     查看本题详细解析

标记此题
9#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The oxides of two period 3 elements, X and Y, reactb,h 4e)vtlv0q in water according to the equations belolvt)e,v4 qhb0 w.
I. $XO_{2(s})$ + $H_2O_{l}$→$H_2XO_{3(aq)}$
II. $YO_{2(s})$ + $H_2O_{l}$→$Y(OH)_{2(aq)}$
1.Identify elements X and Y. Element X is   ;Element Y is   .
2.Predict whether element X or Y would have a higher melting point. Element    will have a higher melting point than element  

参考答案:     查看本题详细解析

标记此题
10#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.Explain the difference in physical prozs*y62n3nfbt perties of the following using knowledge of chemical structure2f yns6 3*tbzn and bonding:
.1.The boiling point of hydrochloric acid (HCl) is    than that of lithium chloride (LiCl).
.2.Calcium bromide ($CaBr_2$)    conduct electricity in a molten state and aqueous solution; Bromine ($Br_2$)   .
.3.The boiling point of HI is    than $I_2X$.
2.Arrange bromine ($Br_2$), potassium and potassium bromide in order of increasing boiling points.
  <  < 

参考答案:     查看本题详细解析

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which statements regardiiif+i ie2lw:kl6 /k c6 :fijq4ng metallic bonding are correct?
I.The higher the charge on the ion of a metallic element, the weaker the bond
II.A metallic element with a greater ionic radius will have a weaker metallic bonding
III.Metallic bond strength increases with the number of delocalized electrons

参考答案:     查看本题详细解析

标记此题
12#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Lithium is a metal ing z3lkyemv4-3 b1/ mak group 1 of the periodic table. The group 1 metals react with bromine to form soluble bromide salts, which all have th-ly a e3/bmkgk13zv 4me same lattice structure.
1.The melting points of the group 1 metals and their bromide salts are shown in the graph.


1.Explain the variation in the melting points of the group 1 metals.

2.The following diagram shows the electron density distributions formed when bromide ions interact with lithium and sodium ions.

Based on the diagram, suggest why the melting point of lithium bromide is lower than that of sodium bromide.
2.Lithium is a good electrical conductor, whereas lithium bromide is an electrical insulator.
.1.Explain the difference in the electrical conductivities of lithium and its bromide salt.
.2.Explain how water interacts with lithium bromide to produce an electrically conductive solution.
参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following are characteristics of trantzn 6n1+ uu3qksition elements?
I.High melting points
II.Soft
III.Electrically conductive

参考答案:     查看本题详细解析

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following explains why transition metals have high melting points?

参考答案:     查看本题详细解析

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following characteristics of transition metals results in h(*r7cxdnjr 29qqau. :0k91hrhh jitm igh electd0h2h1nq(a9 7mik:*xrh qrrcu9t j j.rical conductivity?

参考答案:     查看本题详细解析

标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When comparing Ca to Ni, which of the folloxe 2xn5wi9.ad wing is true?

参考答案:     查看本题详细解析

标记此题
17#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Vanadium and titanium am4)awui 7g0y fre both common metals in aerospace engineering because they have a high strength to wwau 4i07f m)ygeight ratio.
1.vanadium has a    melting point than titanium.
2.Titanium and vanadium are both able to conduct electricity. Explain how this is possible.
3.Tin is not a good choice for use in aerospace engineering. Predict, with a reason, why this is so.

参考答案:     查看本题详细解析

  • :
  • 总分:17分 及格:10.2分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题,此次习题练习共有 17 道题
    本系统支持习题练习,作业与考试三大模式,作业考试自动评分,成绩排序一键导出,可设定动态变量同一试卷千人千题
    如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

    浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2024-12-26 16:48 , Processed in 0.118277 second(s), 55 queries , Redis On.