
STRUKTUR ATOM
Authored by Rini Indriani, S. Pd
Chemistry
10th Grade
Used 1K+ times

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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1. Kalium mempunyai nomor atom 19 dan nomor massa 39. Jumlah elektron pada ion Kalium adalah,,,
A. 21
B. 20
C. 19
D. 18
E. 17
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2. Pada isotop unsur Fe dan Ra , jumlah proton dan netron kedua unsur secara berturut – turut adalah . . .
A. (26 , 26) : (88 , 88)
B. (26 , 26) : (88 , 138)
C. (26 , 30) : (88 , 138)
D. (26 , 30) : (88 , 266)
E. (26 , 56) : (88 , 138)
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Lambang suatu unsur X dapat disimpulkan bahwa pada satu atom unsur X mempunyai. . .
A. 18 neutron dan 18 proton
B. 22 neutron dan 22 proton
C. 40 proton dan 18 elektron
D. 18 proton dan 22 neutron
E. 40 neutron dan 22 proton
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Ion X+3 memiliki konfigurasi electron 1s2 2s2 2p6. Nilai keempat bilangan kuantum electron terakhir dari atom X adalah . . . .
n = 3, l = 1, m = - 1 , s = + ½
n = 3, l = 1, m = + 1 , s = + ½
n = 3, l = 1, m = 0 , s = + ½
n = 2, l = 1, m = +1 , s = +½
n = 2, l = 1, m = -1, s = - ½
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diantara unsur – unsur diatas yang terletak dalam golongan yang sama dalam sistem periodik adalah . . .
A. P dan Q
B. Q dan S
C. P dan R
D. S dan T
E. R dan T
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berdasarkan percobaan hamburan sinar alfa yang dilakukan oleh Rutherford dihasilkan teori bahwa bagian terbesar dari suatu atom adalah ruang kosong. Kesimpulan tersebut diambil berdasarkan fakta...
A. Sebagain besar sinar diteruskan
B. Ada sinar yang dipantulkan
C. Sebagian kecil sinar dibelokkan
D. Sebagian besar sinar dihamburkan
E. Adal bagian sinar yang diserap
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Atom – atom unsur tertentu mempunyai 16 elektron. Atom – atom unsur lain dengan sifat yang mirip adalah yang mempunyai jumlah elektron . . .
A. 10
B. 24
C. 34
D. 50
E. 64
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