Suatu unsur mempunyai konfigurasi elektron berikut = 2, 8, 18, 7. Nomor massa
unsur tersebut adalah 80. Maka atom unsur tersebut memiliki ………….
PB KIMIA X
Quiz
•
Chemistry
•
10th Grade
•
Hard
tika julaekha
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Suatu unsur mempunyai konfigurasi elektron berikut = 2, 8, 18, 7. Nomor massa
unsur tersebut adalah 80. Maka atom unsur tersebut memiliki ………….
35 proton & 45 netron
35 elektron & 35 netron
35 proton & 35 netron
35 elektron & 80 netron
80 elektron & 80 proton
2.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Atom 45X103 proton, netron & electron berturut-turut ....
103, 58, 45
58 , 45, 45
45 , 58, 45
45, 45, 103
45, 103, 58
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Penyusunan unsur-unsur dalam sistem periodik panjang yang disusun berdasarkan kenaikan nomor atom digagas oleh .....
Dmitri Mendeleyev
Henry Moseley
John Alexander Newlands
Wolfgang Dobereiner
Neis Bohr
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Khlor dan Brom terletak dalam satu golongan karena ....
Nomor atom sama
Jumlah elektron sama
Jumlah proton sama
Jumlah elektron valensi sama
Jmlah kulit elektron sama
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Elektron terakhir atom X memiliki harga bilangan kuantum :
n =4, l =1, m = +1, s = -1/2
Nomor atom X adalah ...
12
17
30
33
36
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Kation Ca 2+ memiliki konfigurasi elektron = 2, 8, 8. Atom tersebut terdapat dalam ...
Gol. I A, perioda ke-3
Gol. IIA, perioda ke-3
Gol. IIA, perioda ke-4
Gol.IVA, perioda ke-4
Gol.VI A, perioda ke-3
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Nomor atom unsur A, B, C, D dan E berturut-turut adalah 6, 8, 9, 16, 19. Pasangan unsur yang dapat membentuk ikatan ion dengan mudah ialah ....
A dan B
C dan E
B dan D
D dan C
A dan C
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