
Soal Evaluasi 1
Authored by 29_Setri Rofifah
Chemistry
10th Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi kimia merupakan pemisahan, penggabungan, atau penyusunan kembali atom-atom, sehingga atom tidak bisa dibuat atau dimusnahkan. Teori ini dikemukakan oleh ….
Dalton
Thomson
Max Planck
Rutherford
Neils Bohr
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rutherford mengemukakan bahwa dalam atom terdapat inti atom yang bermuatan positif. Hasil tersebut diperoleh setelah melakukan percobaan dengan ….
tabung sinar katoda
penembakan gas helium
tabung sinar anoda
hamburan sinar alfa dari uranium
tabung sinar katoda yang dimodifikasi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kelemahan teori atom Niels Bohr adalah ….
tidak dapat menentukan posisi elektron dengan pasti
bertentangan dengan hukum-hukum fisika klasik dari Maxwell
tidak dapat menjelaskan spektrum unsur hidrogen
tidak dapat menentukan perubahan energi pada perpindahan elektron dalam atom
bertentangan dengan teori atom Dalton bahwa atom-atom suatu unsur identik
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Struktur pembentuk atom terdiri dari ….
positron, elekron, neutron
positron, proton, elektron
proton, elektron, neutron.
proton, elektron
proton
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu unsur P memiliki nomor massa 65 dan nomor atom 30 mempunyai proton, elektron, dan neutron masing-masing sebesar ….
30, 30, 65
30, 65, 30
65, 30, 30
30, 35, 30
30, 30, 35
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