
konfigurasi elektron
Authored by Ncy Maulany
1st Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan tabel periodic berikut
Letak unsur yang sesuai dengan nomor atom dan konfigurasi electron adalah ...
unsur X, Z=9, konfigurasi elektron [He] 2s2 2p5
Unsur Y, Z = 10, konfigurasi elektron [Ne] 2s2 3p6
unsur L, Z = 13, konfigurasi elektron [Ne] 3s2 3p1
Unsur Z, Z = 17, konfigurasi elektron[Ne] 3s2 3p5
Unsur Q, z = 20, Konfigurasi elektron [Ne] 3s2 3p6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Konfigurasi electron unsure Ca dengan nomor atom 20 adalah ......
2,8,10
2,8, 8, 2
2,8,8, 6
2,8,18,2
2,8,18,8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan notasi unsure berikut 35Br-
Banyaknya electron valensi yang dimiliki unsure tersebut adalah ....
2
7
8
10
12
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ion Cu2+memiliki konfigurasi elektron 1s2 2s2 2p6 3s2 3p6 3d9. Nomor atom unsur Cu adalah ...
23
25
27
29
31
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan kuantum dari unsure dengan nomor atom 19 adalah...
n = 2; l = 0; m= +1; dan s= -½
n = 2; l = 1; m= - 1; dan s= +½
n = 3; l = 1; m= - 1; dan s= +½
n = 4; l = 0; m= 0; dan s= +½
n = 4; l = 1; m= 0; dan s= -½
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu unsur Y diketahui memiliki konfigurasi electron yakni 1s2 2s2 2p6 3s2 3p6 4s2 3d8. Pernyataan yang tepat tentang unsur Y adalah ....
Unsur Y terletak pada golongan VIIIA periode 3
Unsur Y terletak pada golongan VIIIA periode 4
Unsur Y terletak pada golongan VIIIB periode 4
Unsur Y memiliki bilangan kuantum n=3,l=1,m=0,s= - ½
Unsur Y memiliki bilangan kuantum n = 3, l=1, m = 0, s = + ½
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur X terletak pada periode 3 golongan IA, maka konfigurasi electron unsure tersebut adalah....
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p1
1s2 2s2 2p6 3s13p3
1s2 2s2 2p6 3s2 3p5
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