
kimia x
Authored by Resti Prihartini
Chemistry
1st Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Susunan elektron pada kulit K, L, M, N untuk kalsium yang memiliki nomor atom 20 adalah ....
2, 8, 10,
2, 8, 9, 1
2, 8, 8, 2
2, 0, 6, 2
2, 8, 20
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui unsur V dengan nomor atom 23. Konfigurasi elektron unsur tersebut adalah . .
1s2 2s2 2p6 3s2 3p6 4s2 4p3
1s2 2s2 2p6 3s2 3p6 4s2 3d2 4p1
1s2 2s2 2p6 3s2 3p6 4s5
1s2 2s2 2p6 3s2 3p6 4s2 3d3
1s2 2s2 2p6 3s2 3p6 3d5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
52Te126 memiliki ....
126 neutron, 52 proton, dan 52 elektron
74 neutron, 52 proton, dan 52 elektron
52 neutron, 74 proton, dan 74 elektron
52 neutron, 126 proton, dan 126 elektron
74 neutron, 74 proton, dan 126 elektron
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
52Te126 memiliki ....
126 neutron, 52 proton, dan 52 elektron
74 neutron, 52 proton, dan 52 elektron
52 neutron, 74 proton, dan 74 elektron
52 neutron, 126 proton, dan 126 elektron
74 neutron, 74 proton, dan 126 elektron
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atom Natrium memiliki no massa 23 dan 12 neutron. Jumlah elektron valensi natrium adalah ....
1
2
3
4
5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Harga keempat bilangan kuantum untuk elektron terakhir dari atom adalah
n = 3; l = 0; m = -1; s = +½
n = 3; l =0; m = +1; s = -½
n = 3; l = 1; m = +1; s = +½
n = 3; l = 2; m = 0; s = -½
n = 3; l = 1; m = 0; s = -½
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu unsur memiliki notasi 35 Br 80
Konfigurasi elektron dan letak unsur tersebut dalam sistem periodik berturut-turut adalah ...
[Ar] 4s2 3d10 4p5
golongan VIIA
Periode 4
[Ar] 3d10 4s2 4p5
Golongan VIIB
Periode 4
[Ar]3d10 4s2 4p5
Golongan VB
Periode 4
[Ar]3d10 4s2 4p6
Golongan VIIIA
Periode 4
[Ar]3d10 4s2 4p3
Golongan VA
Periode 4
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