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– Li Na is really a super tennis player in the worlD. - Yes. We were so her when she won the Aus...
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教案备课库《2014-2015学年度第一学期九年级英语Unit 3-4质量检测题及答案》真题及答案
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Cl.P.S
N.O.F
Al
3+
.Mg
2+
.Na
+
K.Na.Li
下列各组元素按第一电离能增加顺序排列的是
Na、Al、Mg
Be、B.Li
Li、Na、K
O.、F.、N.
下列关于碱金属某些性质的排列中正确的是
电子层数:Li
密度:Li
熔点和沸点:Li
还原性:Li>Na>K>Rb>Cs
The2011runner-upLiNasweptsecond-seededRussianMaria
---Noone________becomparedwithLiNainplayingtennis.
can
need
must
might
A.togivethebossyouradviceB.howheisfeelingC.theboss
Wecanmakemistakesatanyage.Somemistakeswemakeareabo
Wecanmakemistakesatanyage.Somemistakeswemakeareabo
A.togivethebossyouradviceB.howheisfeelingC.theboss
LiNamadetennishistorywhenshewontheFrenchOpenWomen’
下列关于碱金属一族说法正确的是
Li、Na、K.与氧气反应的产物越来越复杂
还原性:Li
熔沸点:Li
Li、Na、K.的原子半径的密度都随原子序数的增加而增大
A.togivethebossyouradviceB.howheisfeelingC.theboss
A.togivethebossyouradviceB.howheisfeelingC.theboss
Mydreamhascometrue.IhavealwayswantedtobeaGrandSlam
下列关于碱金属元素的叙述正确的是
原子半径Li
都是银白色金属
熔点、沸点Li
还原性Li>Na>K >Rb > Cs
下列微粒中原子或离子半径最小的是
Li
NA
Li+
K
当含Li+Na+K+的溶液进行离子交换时各离子在交换柱中从上到下的位置为
Li+、Na+、K+
Na+、K+、Li+
K+、Li+、Na+
K+、Na+、Li+
遇水发生剧烈反应容易产生爆炸或燃烧的化学品是
K、Na、Mg、Ca、Li、AlH3、电石
K、Na、Ca、Li、AlH3、MgO、电石
K、Na、Ca、Li、AlH3、电石
K、Na、Mg、Li、AlH3、电石
金属键的强弱与金属价电子数的多少有关价电子数越多金属键越强与金属阳离子的半径大小也有关金属阳离子的半
Li Na K
Na Mg Al
Li Be Mg
Li Na Mg
----LiYuchunissaidtohavebeeninvitedto2014CCTVSprin
since
that
when
before
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