本课配套习题挑战模式1/4
单选题
难度系数:
1.X、Y、Z、R是1~18号元素中的四种元素,它们的原子结构有以下特点,其中金属性最强的是①元素X原子的M层比L层少3个电子②元素Y的2价阴离子的核外电子排布与氖原子相同③元素Z原子的L层比M层多5个电子④元素R原子的L层比K层多3个电子
A: X |
B: Y |
C: Z |
D: R |
一次做对,真牛!
+5奖励规则>
- 提示1:5pys6aKY55qE6ICD54K55piv5Y6f5a2Q5qC45aSW55S15a2Q55qE5o6S5biD77yM5bCG6aKY55uu5L+h5oGv5Yip55So6LW35p2l77yM5o6o5pat5Ye65Zub56eN5YWD57Sg77yM5YaN5q+U6L6D5YW26YeR5bGe5oCn5Y2z5Y+v44CC
- 答案:Qw==
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
本课配套习题挑战模式2/4
单选题
难度系数:
2.碱性强弱介于KOH和Mg(OH)2之间的氢氧化物
A: NaOH |
B: Al(OH)3 |
C: LiOH |
D: RbOH |
一次做对,真牛!
+5奖励规则>
- 提示1:5YWD57Sg5pyA6auY5Lu35rCn5YyW54mp5a+55bqU5rC05YyW54mp56Kx5oCn55qE5by65byx5LiO6K+l5YWD57Sg55qE6YeR5bGe5oCn5piv5LiA6Ie055qE44CC5pys6aKY5Y+q6ZyA5om+5Yiw6YeR5bGe5oCn5ZyoS+S4jk1n5LmL6Ze055qE5YWD57Sg5Y2z5Y+v44CC
- 答案:QQ==
5qC55o2u6YeR5bGe5rS75Yqo5oCn6aG65bqP5qCH5Y+v5Lul5om+5Yiw77yMTmHlhYPntKDnmoTph5HlsZ7mgKflnKhL5YWD57Sg5LiOTWflhYPntKDnmoTph5HlsZ7mgKfkuYvpl7TjgILlm6DmraROYU9I56Kx5oCn55qE5by65byx5ZyoS09I5LiOTWcoT0gpPHN1Yj4yPC9zdWI+5LmL6Ze044CC6YCJ5oupQemhueOAgg==
本课配套习题挑战模式3/4
单选题
难度系数:
3.可用来判断金属性强弱的依据是
A: 原子电子层数的多少 |
B: 最外层电子数的多少 |
C: 最高价氧化物的水化物的碱性强弱 |
D: 等物质的量的金属置换氢气的多少 |
一次做对,真牛!
+5奖励规则>
- 提示1:5pys6aKY6KaB5rGC5o6M5o+h5Yaz5a6a6YeR5bGe5oCn5by65byx55qE5pys6LSo5Zug57Sg44CC5Lul5Y+K6YeR5bGe5oCn5b2x5ZON55qE5LiA5Lqb5oCn6LSo44CC
- 答案:Qw==
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
本课配套习题挑战模式4/4
多选题
难度系数:
4.下列各组元素最高正价氧化物对应水化物碱性逐渐减弱、酸性逐渐增强的是
A: Na、Mg、P、S |
B: K、Na、Cl、S |
C: Ca、Al、Br、Cl |
D: Mg、Ca、P、S |
一次做对,真牛!
+5奖励规则>
- 提示1:6YeR5bGe5YWD57Sg5pyA6auY5Lu35rCn5YyW54mp5a+55bqU5rC05YyW54mp56Kx5oCn5YeP5byx77yb
- 提示2:5ZCM5ZGo5pyf6Z2e6YeR5bGe5YWD57Sg5pyA6auY5Lu35rCn5YyW54mp5a+55bqU5rC05YyW54mp55qE6YW45oCn5aKe5by644CC
- 答案:QSxD
5pys6aKY5Y+q6ZyA5q+U6L6D5ZCE6YCJ6aG55Lit6YeR5bGe5oCn5LiO6Z2e6YeR5bGe5oCn55qE5by65byx5Y2z5Y+v44CC4oCc5pyA6auY5q2j5Lu35rCn5YyW54mp5a+55bqU5rC05YyW54mp56Kx5oCn6YCQ5riQ5YeP5byx44CB6YW45oCn6YCQ5riQ5aKe5by64oCd55qE6aG65bqP77yM5q2j5piv6YeR5bGe5oCn5YeP5byx77yM6Z2e6YeR5bGe5oCn5aKe5by655qE6aG65bqP77yM5Lmf5bCx5piv5YWD57Sg5ZGo5pyf6KGo5Lit55Sx5bem5LiL5Yiw5Y+z5LiK55qE6aG65bqP44CCPGJyPue7vOS4iu+8jOmAieaLqUHjgIFD5Lik6aG544CC