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根据元素周期律判断，不正确的是（ ）
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高三下学期化学《》真题及答案
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根据元素周期表和元素周期律判断下列叙述不正确的是
上图所示实验可证明元素的非金属性：Cl＞C.＞Si
第三周期主族元素的最高正价随原子序数递增而依次增大
气态氢化物的稳定性：H
2
O＞NH
3
＞CH
4
第115号元素在周期表中位于第七周期第VA族
根据元素周期律判断下列递变规律不正确的是
Na、Mg、Al的金属性依次减弱
HCl、HBr、HI的稳定性依次增强
HClO
4
、H
2
SO
4
、H
3
PO
4
的酸性依次减弱
Li、Na、K.与水反应的剧烈程度依次增强
元素周期律
关于元素周期表和元素周期律的应用有如下叙述①元素周期表是同学们学习化学知识的一种重要工具②利用元素
只有②③
只有②③④
只有③④
①②③④
元素的性质随着元素原子序数的递增而周期性变化的称为元素周期律
关于元素周期表和元素周期律的应用有如下叙述①元素周期表是学习化学知识的一种重要工具②利用元素周期表可
①②③④
只有②③④
只有③④
只有②③
提出元素周期律并根据周期律编制元素周期表的科学家是
道尔顿
拉瓦锡
门捷列夫
阿伏加德罗
最先提出元素周期律的人是
关于元素周期表和元素周期律的应用有如下叙述其中正确的是①元素周期表是同学们学习化学知识的一种重要工具
①②③④
②③④
③④
②③
元素周期表是学习和研究化学的重要工具试根据元素周期表回答下列问题最早发现元素周期律排出元素周期表的科
.1869年________发现了元素周期律和元素周期表.
根据元素周期律的知识下列两者性质比较中不正确的是
热稳定性：PH
3
＜NH
3
金属性强弱：Na＞Mg＞Al
酸性强弱：HF＞HCl＞HBr＞HI
原子半径：K.＞Si＞Cl＞F.
提出元素周期律并根据周期律编制出第一个元素周期表的科学家是
门捷列夫
拉瓦锡
道尔顿
阿伏加德罗
根据元素周期表和元素周期律分析下面的推断其中不正确的是
硒(Se)化氢比硫化氢稳定
砹(At)的单质颜色为黑色
铍(Be)的原子失电子能力比镁弱
氢氧化镭[Ra(OH
2
)]比氢氧化钙的碱性强
元素的随着元素的递增而呈同期性变化的规律叫做元素周期律
提出元素周期律并根据周期律编制第一个元素周期表的科学家是
门捷列夫
普利斯特里
道尔顿
阿佛加德罗
波尔的原子模型能够很好地说明元素周期律
对元素周期律贡献最大的人是
1869年3月科学家正式公布了元素周期律
根据元素周期表和元素周期律分析下面的推断其中不正确的是
氢氧化钡比氢氧化钙的碱性强
HBrO
4
的酸性比HIO
4
强
铍（Be）原子失电子的能力比镁弱
硒（Se）化氢的稳定性比硫化氢的稳定性强
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如图所示水平面上放置两根平行的光滑金属导轨其上搁置两根金属棒ab和cd金属棒能在导轨上自由滑动整个装置放在竖直向下的匀强磁场中当ab向右滑动时棒cd
在核反应方程He+N→O+X中X所代表的粒子是
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光波具有的下列性质中与声波不同的是
如图光滑的平行金属导轨水平放置电阻不计导轨间距为L电阻R1R2并联后接在导轨左端．整个区域内存在垂直轨道平面向下的匀强磁场．一质量为m电阻为r的金属棒MN置于导轨上与导轨垂直且接触良好．自t＝0时刻起在一水平向右的外力F作用下金属棒由静止开始做加速度a＝0.4m/s2的匀加速运动．已知L＝1mm＝1kgR1＝0.3ΩR2＝0.6Ωr＝0.3ΩB＝0.5T．求 1t＝0.5s时通过金属棒MN的电流Ir和金属棒的热功率Pr 20～0.5s内通过电阻R1的电量q 3通过分析计算在图b中画出0～1s内F随时间t变化的图象．
10分Manypeoplemightfeellostduringamajortransition转折inlife.Lifecoachinghoweveristhebestchoiceforanyonewhoislookingforwaystogetthroughthetoughpathoflife.1Somelifecoachesmightfocusonlyoncertaintypesofsituationslikeadvancingcareerswhileothersmaybewillingtohelpwithnearlyanylifetransition. Alifecoachwilloftenactasanadvisorforhisclients客户.2Manytimeshewillalsobeabletolookataclient'slifewithafaireyeandofferfreshideasoncertainsituations.Indoingsothelifecoachwillusuallybeabletohelphisclientworkthroughanyproblemshemayface. 3Duringthisinterviewthelifecoachshouldfindoutwhattheclient'swantsneedsandgoalsareinlife. Howtohelpeachclientisdifferenttoeveryoneanditisaveryindividualizedprocess.4Becauseofthisalifecoachmustdevelopplansbasedoneachclient'sstrengthsweaknessesabilitiesandsoon.Alifecoachwillalsousuallytakeeachclient'smoralsandvaluesintoconsideration. Somelifecoachesmaybeabletofindemploymentwithafewselectuniversitiesandcorporations.Therearealsoahandfuloflargelifecoachingfirmsthathirelifecoachesaswell.Themajorityoflifecoacheshoweverworkforthemselvesopeningtheirownlifecoachingpractices.5 A.Methodsthatworkforoneclientmaynotworkforanother. B.Agoodlifecoachshouldtrytosatisfyalltheneedsofhisclients. C.Heisoftenexpectedtolistencloselytotheftconcernsandproblems. D.Beforealifecoachcanhelpaclienthefirstneedsanin﹣depthinterview. E.Lifecoachesofferguidancetoalltypesofpeopleindifferentstagesoftheirlives. F.Generallytherearenostricteducationrequirementsforstartingalifecoachingcareer. G.Insomecasestwoormorelifecoachesmayworktogetherandofferawiderrangeofservices.
30分Foureleven﹣year﹣oldboysWow! Standingsleepilyinthestore'sentranceI1thisstrangesight.MydadhadjustdroppedmeofftoshopforChristmas2butmybrotherandhisfriendshadamorenoble3forshopping. DoyouthinkCaitlinwilllikethis?oneoftheboysasked.Andmybrotherlookingrather4wasstandinginfrontofashelfofsocks.Okay.ThepinkonewouldbeagoodideaI5.Hepickeduponeandpresentedittomefor6. Theyusedupalltheir7someofwhichtheyhadsavedupoverthecourseoftheyearfor Christmasgifts.Buttheyhadall8tospenditonCaitlin. JustninedaysbeforeChristmasCaitlin'shousehadbeen9tothegroundBy10Caitlinandherparentshadallescaped.11everythinginthehousewasengulfedf吞噬inflamesincludingtheChristmaspresents12tohewrapped包装. Theschoolwas13theirbooksanduniformsAndallthe14inCaitlin'sclassweretakinghershoppingforclotheswhiletheboyswereshoppingforthingslikescarvesandsocks. Whenwegothomemybrotherbroughteverythinghehad15forCaitlintomyroomto makesureIthoughtshe'dlikeeverythingonelasttime. Ithinkshe'llloveeverythingIsaidand16himeventhoughhetriedtopushmeaway.Iwasso17ofhimatthatmomentHe18allhissavingsforanewskateboard19forafriendwhoneededaChristmaspresentmorethanhedid.Hehadthroughthisactofapureheartcapturedthetrue20ofChristmas. 1A.exchanged B.observed C.repeated D.shared 2A.dreams B.wishes C.gifts D.secrets 3A.holiday B.reason C.discovery D.problem 4A.ashamed B.confused C.scared D.relieved 5A.warmed B.agreed C.doubted D.advised 6A.approval B.relax C.change D.pity 7A.energy B.time C.money D.patience 8A.decided B.regretted C.failed D.happened 9A.burned B.fallen C.moved D.exposed 10A.nature B.hand C.mistake D.chance 11A.Otherwise B.Instead C.However D.Therefore 12A.Waiting B.pretend C.turning D.Proving 13A.designing B.choosing Cstudying D.replacing 14A.friends B.girls C.colleagues D.parents 15A.bowed B.accept C.purchase D.earned 16A.hugged B.criticized C.teased D.saved 17A.tired B.proud C.careful D.aware 18A.lookedup B.turnedup C.gaveup D.madeup 19A.nervously B.fortunately C.angrily D.selflessly 20A.fact B.opinion C.skill D.spirit
一人站在体重计上．当他静止时台秤指针指在45kg刻度处．则在他快速蹲下的整个过程中台秤指针
如图所示中的两幅图是研究光的波动性时拍摄到的．这属于光的现象如果图中AB分别是用红光和紫光在相同条件下得到的则是用红光得到的．
15分 The10thyearofonlineshoppinginChina In20093Gnetworktechnology1putintocommercialuse.China'smobileInternetusersincreasedby120millioninthisyear2ishighlyconcernedbytheinternationalcommunity.Thenumberofonline3shopwasover100million.OnNovember112009Tmallkickedoff4firstSinglesDayshoppingfestivalthe5bigshoppingdayoftheyearwith27brands6participateinforthefirsttimeandfinalturnoverof50millionyuan.AtthesametimeTmallenabledmorethan200countriesandregions7enterthefreedeliveryarea. Thenextdecade8seeanexplosionofonlineshoppinginChina.From50million9213.5billionthe10constantrefresheddatareflectthereleaseofalargenumberofconsumerdemandsandthegreatpowerofdigitaleconomy.
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