Latihan Struktur Atom Kimia kelas X
Quiz
•
Chemistry
•
11th - 12th Grade
•
Practice Problem
•
Hard
ketut triono
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur Fe yang mempunyai 26
proton, 26 elektron, dan 30 neutron. Pernyataan berikut yang benar sesuai
pernyataan tersebut adalah ... .
nomor atom Fe = 30, bilangan massa = 52
nomor atom Fe = 30, bilangan massa = 56
nomor atom Fe = 26, bilangan massa = 52
nomor atom Fe = 26, bilangan massa = 56
nomor atom Fe = 26, bilangan massa = 82
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Massa atom unsur X adalah 80.
Dalam inti atom X terdapat 46 buah neutron. Konfigurasi elektron unsur X
adalah ... .
2, 8, 18, 6
2, 8, 18, 18
2, 8, 18, 32, 18, 2
2, 8, 18, 4, 2
2, 8, 18, 16, 2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Unsur As nomor atomnya 33 dan
bilangan massanya 75. Banyaknya proton, elektron, dan neutron dalam ion As
3 – ber turut-turut
adalah ....
33, 33, dan 42
33, 30, dan 38
30, 33, dan 38
33, 36, dan 42
36, 38, dan 42
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jumlah proton dan elektron dalam
ion X 3+ adalah 51. Bila
dalam intinya terdapat 32 neutron, maka nomor atom dan bilangan massa
isotop X berturut-turut adalah ... .
24 dan 56
24 dan 83
27 dan 59
27 dan 58
28 dan 59
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bekerja di laboratorium harus
berhati-hati. Di laboratorium disediakan alat pemadam kebakaran untuk
mencegah kebakaran akibat bahan kimia yang mudah terbakar. adalah ... .
Uranium
Besi (III) Klorida
Amonium Nitrat
Natrium Oksalat
Benzena
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur X di alam terdiri dari dua
isotop, yaitu X-40 dan X-43 dengan persen kelimpahan masing-masing adalah
60% untuk X-40 dan 40% untuk X-43. Nilai Ar rata-rata unsur X dialam adalah... .
41,2
41,4
41,6
42,1
42,4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Komposisi dari ion di gambar adalah ... .
Proton 11, Elektron 11, Netron 13
Proton 11, Elektron 10, Netrom 13
Proton 12, Elektron 11, Netron 11
Proton 12, Elektron 10, Netron 12
Proton 13, Elektron 11, Netron 12
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