
Ulangan Harian 2
Authored by Ira Dali
Chemistry
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu atom dengan nomor massa 65, di dalam intinya terdapat 35 neutron. Konfigurasi elektronnya adalah…
2. 8. 5
2. 8. 8. 2
2. 8. 18. 2
2. 8. 18. 3
2. 8. 18. 6
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ion Mg2+mempunyai konfigurasi electron 1s2 2s2 2p6. Jumlah electron valensi unsur Mg adalah…
1
2
5
6
8
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan table system periodic berikut!
Konfigurasi electron unsur Q yang paling sesuai adalah ....
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p4
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p4 3d2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bilangan kuantum spin berfungsi untuk menyatakan…
Perbedaan arah rotasi electron
Perbedaan tingkat energy kulit
Arah ruang suatu orbital
Bentuk orbital sub kulit
Orbital suatu atom
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Harga keempat bilangan kuantum untuk electron terakhir dari atom adalah ....
n = 3; l = 0; m = -1; s = +1/2
n = 3; l = 0; m = + 1; s = -1/2
n = 3; l = 1; m = + 1; s = +1/2
n = 3; l = 2; m = 0; s = -1/2
n = 3; l = 1; m = 0; s = -1/2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur Q mempunyai nomor massa 86 dan nomor atom 37. Unsur tersebut dalam system periodic unsur terletak pada golongan dan periode ….
IA dan 5
VA dan 3
VA dan 5
VA dan 7
VIIA dan 5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan yang paling benar untuk unsur-unsur segolongan adalah…
Mempunyai elektron sama
Mempunyai konfigurasi electron sama
Mempunyai elektron valensi sama
Mempunyai sifat kimia sama
Mempunyai jumlah kulit sama
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