
Chemistry_Post Test_Geng Pejabat
Authored by Alvern Institute
Chemistry
10th - 12th Grade
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Gambar berikut ini merupakan perkembangan model atom. Model atom Rutherford adalah model atom nomor ....
1
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Kulit-kulit atom bukan merupakan kedudukan yang pasti dari suatu elektron, melainkan hanya suatu kebolehjadian ditemukannya elektron.
Pernyataan ini dikemukakan oleh ….
Heisenberg
Niels Bohr
Rutherford
J.J Thomson
Darryl
3.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Elektron dapat berpindah dari suatu lintasan ke lintasan yang lain sambil menyerap atau memancarkan energi. Teori yang merupakan penyempurnaan dari teori atom Rutherford ini dinamakan teori ….
Niels Bohr
Dalton
Thomson
Rutherford
Mekanika Kuantum
4.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Teori yang menjadi dasar timbulnya model atom modern adalah teori…
Rutherford, Niels Bohr dan de Broglie
Pauli, Niels Bohr dan de Broglie
Rutherford, de Broglie dan Hund
Louis de Broglie, Schrodinger dan Heisenberg
Dalton, de Broglie dan Heisenberg
5.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Dalam suatu atom elektron di sekitar inti atom tidak jatuh ke dalam, hal ini disebabkan karena ....
elektron bergerak dengan lintasan dan jarak tertentu dari inti atom
gaya tolak-menolak antara elektron dan inti atom, relatif besar
adanya penghalang antara inti atom dan elektron
massa elektron relatif kecil dibandingkan massa inti atom
elektron dalam kondisi diam di sekitar inti atom
6.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Suatu atom yang elektron terakhirnya memiliki bilangan kuantum n = 3; l = 2; m = -1; s = – ½, maka nomor atom unsur tersebut adalah …
18
24
27
29
30
7.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Unsur klorin mempunyai nomor atom 17 dan nomor massa 35. Harga keempat bilangan kuantum untuk elektron terakhir atom unsur tersebut adalah …
n = 3, l = 1, m = 0, s = – 1/2
n = 3, l = 1, m = -1, s = + 1/2
n = 3, l = 1, m = +1, s = + 1/2
n = 4, l = 1, m = 0, s = – 1/2
n = 4, l = 1, m = +1, s = + 1/2
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