
Struktur Atom
Authored by Mashuda Nurbani
Chemistry
1st Grade
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Langkah-langkah kerja berikut ini diperlukan ilmuan dalam mengembangkan ilmu kimia.
1. Merumuskan masalah
2. Melakukan eksperimen
3. Mengolah data
4. Menemukan masalah
5. Menyusun kerangka teori
6. Membuat laporan
7. Menarik kesimpulan
8. Merumuskan hipotesis
Urutan langkah kerja sesuai metode ilmiah yaitu ….
A. 1 – 4 – 5 – 8 – 2 – 3 – 7 – 6
B. 1 – 4 – 2 – 3 – 5 – 6 – 7 – 8
C. 2 – 7 – 4 – 6 – 5 – 3 – 1 – 8
D. 5 – 1 – 3 – 8 – 7 – 2 – 4 – 8
E. 4 – 1 – 5 – 8 – 2 – 3 – 7 – 6
1 – 4 – 5 – 8 – 2 – 3 – 7 – 6
1 – 4 – 2 – 3 – 5 – 6 – 7 – 8
2 – 7 – 4 – 6 – 5 – 3 – 1 – 8
5 – 1 – 3 – 8 – 7 – 2 – 4 – 8
4 – 1 – 5 – 8 – 2 – 3 – 7 – 6
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu atom mempunyai 20 neutron dan nomor massa 39. Unsur tersebut mempunyai elekltron valensi sebanyak:
1
2
3
6
10
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
. Di antara unsur berikut yang memiliki elektron valensi terbanyak adalah ....
(A) 5P
(B) 7Q
(C) 8 R
(D) 11S
(E) 15T
5 P
7 Q
8 R
11 S
15 T
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Harga keempat bilangan kuantum untuk elektron terakhir atom S dengan nomor atom 16 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
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jumlah elektron yang tidak berpasangan pada atom vanadium dengan nomor atom 23 adalah:
0
3
4
5
6
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur X mempunyai bilangan kuantum n = 3 l = 1 m = 0 s = . Nomor atom unsur X adalah:
12
14
16
18
19
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan bagan percobaan penghamburan sinar alfa berikut.
Partikel alfa yang jatuh pada titik A adalah ....
partikel alfa yang menabrak inti atom
partikel alfa yang menabrak elektron
partikel alfa yang melewati ruang kosong di dekat inti atom
partikel alfa yang melewati ruang kosong jauh dari inti atom
partikel alfa yang berenergi rendah
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