
Reputan radioaktif
Authored by AZLIDA Moe
Science
10th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan persamaan bagi pereputan nukleus X. Berapakah bilangan proton dan neutron dalam nukleus X
Proton 86 Neutron 440
Proton 86 Neutron 230
Proton 90 Neutron 140
Proton 90 Neutron 230
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Persamaan berikut menunjukkan pembelahan nukleus bagi Uranium-235. Apakah X?
Zarah α
Zarah β
Tenaga
Sinar- γ
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah menunjukkan proses pereputan bagi Plumbum-214. Zarah X dan zarah Y manakah yang betul?
X = γ
Y = γ
X = β
Y = γ
X = γ
Y = β
X = β
Y = β
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah menujukkan satu siri reputan radioaktif bagi nukelus uranium-238 kepada radium-226. Berapakah bilangan zarah alfa dan zarah beta yang dikeluarkan dari proses ini ?
α = 2 β = 3
α = 3 β = 2
α = 4 β = 1
α = 1 β = 1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah menunjukkan siri pereputan radioaktif nukleus R kepada nukleus U. Berapakah bilangan zarah alfa dan zarah beta yang dipancarkan dalam proses ini?
α = 2
β = 1
α = 1
β = 2
α = 2
β = 2
α = 1
β = 1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jisim awal suatu unsur radioaktif ialah 10 g dan separuh hayatnya ialah 6 hari. Antara pernyataan berikut, yang manakah benar tentang jisim unsur radioaktif itu?
6 hari sebelumnya, jisimnya ialah 20 g
12 hari sebelumnya, jisimnya ialah 80 g
6 hari selepasnya, jisimnya ialah 2.5 g
12 hari selepasnya, jisimnya ialah 5.0 g
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu unsur radioaktif berjisim 12 g mempunyai setengah hayat 4 hari. Manakah yang benar tentang jisim unsur radioaktif itu?
8 hari sebelumnyua, jisimnya adalah 36 kg
4 hari sebelumnya, jisimnya adalah 24 g
8 hari selepasnya, jisimnya 6 g
4 dari selepasnya, jisimnya adalah 3g
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