
struktur atom
Authored by Dedi Iskandar
Chemistry
10th Grade
Used 11+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hal yang membuktikan model atom Thompson tidak tepat adalah percobaan…
Sinar katode
Hamburkan sinar alfa pada lempeng tipis emas
Spektrum atom hidrogen
Tetes minyak Millikan
Sinar kanal
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dari percobaan hamburan sinar alfa, Rutherford menemukan adanya sebagian kecil sinar alfa yang dipantulkan atau dibelokkan, maka Rutherford mengambil kesimpulan bahwa…
Sebagian besar atom merupakan ruang kosong
Muatan positif atom terpusat pada inti
Elektron mengelilingi inti pada lintasan yang melingkar
Gaya tarik inti dilawan oleh gaya sentripetal elektron
Muatan inti sama dengan muatan elektron yang mengelilinginya
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dari pengamatan hasil percobaan Rutherford didapatkan data bahwa sejumlah kecil partikel alfa yang dihamburkan dibelokkan dengan sudut yang sangat besar, maka kesimpulan yang tidak tepat adalah
Sebagian besar massa atom terpusat pada inti
Jarak antara inti atom dengan electron yang mengelilingi jauh lebih kecil dibanding ukuran inti atom dan elektron
Ukuran inti sangat kecil
Kerapatan inti sangat besar
Jarak antara inti atom dengan electron yang mengelilingi jauh lebih besar dibanding ukuran inti atom dan elektron
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui isotop 26Br56 , maka ion Fe+3 mempunyai :
23 elektron disekitar inti
26 elektron disekitar inti
29 proton didalam inti
29 elektron didalam inti
56 neutron didalam inti
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan susunan atom berikut :
Notasi yang benar untuk atom tersebut adalah :….
2X3
3X2
2X5
3X5
2X4
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