SPM BM Chem – Unsur dalam Kumpulan 18
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Question 1 of 10
1. Question
1 point(s)Kumpulan 18 dikenali sebagai gas adi atau gas lengai.
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Question 2 of 10
2. Question
1 point(s)Unsur helium mempunyai susunan elektron 2.
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Question 3 of 10
3. Question
1 point(s)Gas adi mempunyai takat lebur dan takat didih yang tinggi.
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Question 4 of 10
4. Question
1 point(s)Neon digunakan dalam lampu iklan dan tiub televisyen.
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Question 5 of 10
5. Question
1 point(s)Gas argon digunakan dalam mentol lampu.
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Question 6 of 10
6. Question
1 point(s)Kripton digunakan sebagai laser oleh doktor untuk merawat retina yang rosak.
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Question 7 of 10
7. Question
1 point(s)Radon bersifat radioaktif dan digunakan untuk merawat kanser.
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Question 8 of 10
8. Question
1 point(s)Helium digunakan untuk mengisi kapal udara dan belon cuaca kerana ketumpatannya yang rendah.
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Question 9 of 10
9. Question
1 point(s)Gas adi bersifat tidak reaktif secara kimia.
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Question 10 of 10
10. Question
1 point(s)Susunan elektron duplet sangat stabil.
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