
UH Struktur atom dan tabel periodik
Authored by Meliyanti Meliyanti
Chemistry
10th Grade
Used 18+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Atom terdiri atas materi bermuatan positip dan di dalamnya tersebar elektron-elektron bagaikan kismis dalam roti kismis.
Model atom tersebut dikemukakan oleh … .
John Dalton
Goldstein
J.J. Thomson
J. Chadwick
Henry Becquerel
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Notasi suatu unsur adalah 2714X, maka atom unsur tersebut mempunyai ….
13 elektron, 14 proton dan 13 netron
14 elektron, 14 proton dan 13 netron
13 elektron, 13 proton dan 14 netron
14 elektron, 13 proton dan 14 netron
13 elektron, 13 proton dan 27 netron
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui sifat dari 2 buah atom unsur
1. Jumlah netronnya sama
2. Jumlah protonnya sama
3. Nomor massanya sama
4. Sifat kimianya sama
Pernyataan yang menunjukkan sifat isobar adalah nomor …..
1, 2 dan 3
1 dan 3
2 dan 4
3 saja
1,2,3, dan 4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada penyusunan system periodik, Mendeleyev menyusun unsur-unsur berdasarkan …..
sifat unsur dan nomor atom
sifat unsur dan struktur atom
sifat unsur dan massa atom
sifat unsur dan massa isotop relatif
sifat unsur dan volume atom
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui beberapa unsur dengan konfigurasi elektronnya sebagai berikut :
P = 2 .8 . 7
Q = 2 .8 . 2
R = 2 .8 . 8
S = 2 . 5
T = 2 .8 . 3
Unsur yang terletak pada golongan Alkali tanah (IIA) adalah … .
P
Q
R
S
T
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sistem periodik yang sekarang digunakan disusun berdasarkan sifat-sifat unsur dan kenaikan dari … .
nomor massanya
jumlah netronnya
nomor atomnya
Ar-nya
jumlah nukleonnya
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Unsur dengan nomor massa 40 dan nomor atom 19, termasuk unsur golongan … .
Alkali (IA)
alkali tanah (IIA)
halogen (VIIA)
gas mulia (VIIIA)
alumunium (IIIA)
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