Atom History
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Question 16 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Which of these particles was discovered first?
Protons | |
Electrons | |
Neutrons | |
Quarks |
Question 17 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Which model is this? 
Thomson Model | |
Cloud Model | |
Bohr Model | |
Rutherford Model |
Question 18 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
While making his model of an atom, what structure did Rutherford discover (containing protons and neutrons)?
the Nucleus | |
the Electron Cloud | |
the quarks | |
the atomic mass |
Question 19 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Which of the following is/are conclusions based on Rutherford's gold foil experiment ?
Atom is mostly empty space | |
The nucleus is positively charged | |
The atom has a small dense nucleus | |
All answers are correct |
Question 20 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Who was the Greek philosopher who called the smallest particle of matter as "atom"?
Democritus | |
Aristotle | |
J.J Thompson | |
Einstein |
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There are 20 questions to complete.