普通化學 電子組態一問 - 考試
By Eartha
at 2015-05-18T23:24
at 2015-05-18T23:24
Table of Contents
[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處
【出處】95警專類題
【題目】某離子X2+最外層電子組態為5s2,若將X(單質)與鹽酸反應則可製成
XCl2溶液,則下列敘述何者正確? (黃色為正確答案)
(A)X元素常見之氧化數為+2及+4
(B)X為過渡元素
(C)X的電子數為40
(D)X為非金屬
【想法】
1.X拿掉兩顆電子後最外層電子組態為5s2,則推測X應為[Kr]5s24d2
亦即,直接把兩顆電子塞到4d軌域,如此X應為過渡元素,電子數為40
2.但是,答案X為[Kr]5s25p2即Sn,原子序50,與我前述的想法有落差
若您方便的話,還盼不吝解惑與提供建議,謝謝您^^
--
【出處】95警專類題
【題目】某離子X2+最外層電子組態為5s2,若將X(單質)與鹽酸反應則可製成
XCl2溶液,則下列敘述何者正確? (黃色為正確答案)
(A)X元素常見之氧化數為+2及+4
(B)X為過渡元素
(C)X的電子數為40
(D)X為非金屬
【想法】
1.X拿掉兩顆電子後最外層電子組態為5s2,則推測X應為[Kr]5s24d2
亦即,直接把兩顆電子塞到4d軌域,如此X應為過渡元素,電子數為40
2.但是,答案X為[Kr]5s25p2即Sn,原子序50,與我前述的想法有落差
若您方便的話,還盼不吝解惑與提供建議,謝謝您^^
--
Tags:
考試
All Comments
By Skylar Davis
at 2015-05-21T06:16
at 2015-05-21T06:16
By Mia
at 2015-05-23T02:31
at 2015-05-23T02:31
By Puput
at 2015-05-24T20:48
at 2015-05-24T20:48
By Noah
at 2015-05-25T09:36
at 2015-05-25T09:36
By Rebecca
at 2015-05-26T07:53
at 2015-05-26T07:53
By Rosalind
at 2015-05-26T08:53
at 2015-05-26T08:53
By Ina
at 2015-05-27T12:00
at 2015-05-27T12:00
By Kama
at 2015-05-31T17:22
at 2015-05-31T17:22
By George
at 2015-06-01T06:49
at 2015-06-01T06:49
By Rae
at 2015-06-01T09:50
at 2015-06-01T09:50
By Frederic
at 2015-06-04T02:23
at 2015-06-04T02:23
By Kelly
at 2015-06-09T00:52
at 2015-06-09T00:52
By Anthony
at 2015-06-12T16:10
at 2015-06-12T16:10
By Queena
at 2015-06-17T03:09
at 2015-06-17T03:09
By Irma
at 2015-06-18T11:31
at 2015-06-18T11:31
Related Posts
距離剩下兩個月的準備方向
By Zora
at 2015-05-18T22:00
at 2015-05-18T22:00
政治學
By Carolina Franco
at 2015-05-18T19:43
at 2015-05-18T19:43
英文老師
By Kama
at 2015-05-18T19:32
at 2015-05-18T19:32
中科院招考人數 閒聊
By Linda
at 2015-05-18T18:05
at 2015-05-18T18:05
易台大用書
By William
at 2015-05-18T18:03
at 2015-05-18T18:03