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Question 16 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER]
Which of these particles was discovered first?
Question 17 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER]
Which model is this?
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 Electron Cloud
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"?
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There are 20 questions to complete.