Notasi Unsur, Nomor atom dan Nomor Massa
Chemistry
10th - 12th Grade
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4 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Gambar susunan struktur atom dari unsur X .
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu unsur mempunyai nomor atom 11 dan jumlah neutron sebanyak 12. Nomor massa unsur tersebut adalah. . . .
20
21
22
23
24
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui notasi unsur :
Pernyataan yang benar tentang notasi unsur di atas adalah. . . .
Unsur O mempunyai 8 proton, 8 elektron, 24 neutron
Unsur O mempunyai 8 proton, 8 elektron, dan 8 neutron
Unsur O mempunyai 16 proton, 16 elektron, dan 16 neutron
Nomor atom unsur O = 16, dan nomor massa 8
Nomor atom unsur O = 7, dan nomor massa = 24.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui ion :
Jumlah partikel penyusun ion Na yang benar adalah. . . .
11 proton, 10 elektron, dan 12 neutron
11 proton, 10 elektron, dan 34 neutron
11 proton, 11 elektron, dan 12 neutron
11 proton, 11 elektron, dan 34 neutron.
11 proton, 11 elektron, dan 24 neutron.
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