Suatu atom mempunyai 3 kulit elektron dan 5 elektron valensi, berapakah nomor atomnya?
struktur atom dan sistem periodik

Quiz
•
Chemistry, Other, Others
•
10th Grade
•
Hard
Diyah Sukmawati
FREE Resource
55 questions
Show all answers
1.
OPEN ENDED QUESTION
2 mins • 20 pts
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2.
OPEN ENDED QUESTION
30 sec • Ungraded
Atom -atom unsur yang mempunyai nomor atom sama tetapi nomor massa berbeda disebut...
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3.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Suatu unsur memiliki lambang unsur sebagai berikut , maka unsur Fe tersebut memiliki ….
56 proton; 26 neutron; dan 30 elektron
56 proton; 30 neutron; dan 26 elektron
26 proton; 26 neutron; dan 30 elektron
26 proton; 30 neutron; dan 26 elektron
26 proton; 26 neutron; dan 30 elektron
4.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Konfigurasi electron yang benar untuk 25Mn adalah ….
1s2 2s2 2p6 3s2 3p6 3d7
1s2 2s2 2p6 3s2 3p6 4s2 3d5
1s2 2s2 2p6 3s2 3p6 4s1 3d6
1s2 2s2 2p6 3s2 3p6 4s2 3p5
1s2 2s2 2p6 3s2 3p6 4s1 3d6
5.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Tentukan bilangan kuantum electron terakhir dari unsur 29Cu ….
n = 3; l = 2; m = +2; s = - 1/2
n = 3; l = 2; m = +2; s = +1/2
n = 3; l = 2; m = +1; s = -1/2
n = 3; l = 2; m = +1; s = +1/2
n = 3; l = 2; m = 0; s = +1/2
6.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Konfigurasi electron dari 9F adalah ….
[He]2s2 2p5
[He]2s1 2p6
[Ne]3s2 3p7
[Ne]3s2 3p6
[Ne]3s2 3p5
7.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Dimanakah letak unsur 13X pada system periodic Unsur?
Periode 3 golongan 1A
Periode 3 golongan 2A
Periode 3 golongan 3A
Periode 3 golongan 4A
Periode 3 golongan 5A
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