Rajah menunjukkan simbol bagi sejenis unsur di dalam Jadual Berkala Unsur Modem.
Berapakah bilangan neutron yang terdapat dalam unsur tersebut?
bab 8 : unsur dan bahan
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Others
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9th - 12th Grade
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Hard
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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Rajah menunjukkan simbol bagi sejenis unsur di dalam Jadual Berkala Unsur Modem.
Berapakah bilangan neutron yang terdapat dalam unsur tersebut?
11
12
23
34
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Maklumat berikut menunjukkan kegunaan radioisotop dalam kehidupan.
• Mengkaji penyerapan gas karbon dioksida semasa fotosintesis dalam tumbuhan
• Menganggar usia artifak
Apakah radioisotop itu?
Karbon-14
Natrium-24
Kobalt-60
Fosforus-32
3.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Bagaimanakah kobalt-60 dapat digunakan untuk mengawet makanan?
Memberikan nutrien tambahan kepada makanan
Mengurangkan suhu makanan
Membunuh mikroorganisma dalam makanan
Memberikan nutrien tambahan kepada makanan
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Rajah menunjukkan satu unsur dalam Jadual Berkala.
Berapakah bilangan elektron dalam atom unsur itu?
10
9
19
28
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Radioisotop yang manakah digunakan oleh ahli arkeologi?
Karbon-14
Natrium-24
Kobalt-60
Iodin-131
6.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Rajah menunjukkan susunan zarah-zarah dalam suatu bahan X
Antara berikut, yang manakah ialah bahan X?
Magnesium
Gas hydrogen
Aluminium oksida
Karbon dioksida
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Bagaimanakah unsur-unsur disusun dalam Jadual Berkala?
Dalam tertib menaik jisim atom
Dalam tertib menaik nombor proton
Dalam tertib menaik nombor nukleon
Dalam tertib menaik bilangan neutron
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