[轉貼] Caesium + H2O --> 爆炸

慶

上網睇到
Na + CsCl--->  Cs + NaCl

This is an equilbrium reaction and under these conditions the caesium is highly volatile and removed from the system in a form relatively free from sodium impurities, allowing the reaction to proceed. It can be purified by distillation

反displacement reaction???

yk852066

Originally posted by Zend at 2006-3-19 23:47:

最勁的去webelements click ne 個Cr
有類似火山爆發的反應

正 A_A

Kenny~宏

好型~
正死~我阿sir廢既~
咩都冇睇過~~~
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牛一牛

之前上堂睇過.
第I族既鹼金屬,活潑性隨電子層的數目而增加...
愈多電子層,爆得愈快愈勁...

[ Last edited by 牛一牛 on 2006-3-21 at 02:00 PM ]

Zend

Originally posted by 牛一牛 at 2006-3-20 16:28:
之前上堂睇過.
第I族既鹵素,活潑性隨電子層的數目而增加...
愈多電子層,爆得愈快愈勁...

group I 係鹼金屬，唔係halogens
係halogens 中，隨著電子層數目愈多，元素的活潑性係遞減
i.e. reactivity :F>Cl>Br>I

Originally posted by 慶 at 2006-3-20 00:23:
上網睇到
Na + CsCl--->  Cs + NaCl

This is an equilbrium reaction and under these conditions the caesium is highly volatile and removed from the system in a form relatively free from sodium  ...

equilibrium reaction.
under what conditions??????

adamsteve

我form4哥陣都睇過 上堂個miss話  d男仔一定會想睇多次