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Class 12 Physics (Part Ii) Chapter 12 Atoms Quiz 3 (25 MCQs)

Quiz Instructions

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1. The number of atoms it would take to make a molecule of water.
2. The center of an atom where its neutrons and protons are is called the .....
3. These are what determine the properties of every atom and make one element different from another. They have a positive charge (yes, I'm positive that it's a positive charge).
4. In a fluorescent tube, the atomic electrons in the phosphor coating:
5. The smallest piece of an element:
6. A synthetic chemist looks at
7. In a fluorescent tube, the atomic electrons in mercury:
8. Any combination of two or more atoms that are chemically combined is called this.
9. This is something that contains that substance and nothing else.
10. How many atoms are in one mole?
11. In a fluorescent tube, fired electrons interact with:
12. In Rutherford's $\alpha$
13. In $\alpha$
14. What is the smallest particle of an element known as
15. According to Rutherford's model, centripetal force for the electron moving round the nucleus is provided by
16. On the Periodic Table of Elements, this is the number below the chemical symbol and tells you how much mass is in a certain number of atoms for that element (you'll need to use this a LOT in high school chemistry).
17. The ..... is based on the number of protons in the nucleus of the atom.
18. Which explains what happens when you rub your hair on a balloon?
19. Subatomic particle with no charge
20. What was the name given to Atoms by Proust
21. How many moles of carbon are there in a pure diamond with mass 6g?
22. These hang out in the nucleus and don't really affect the properties of the atom that much. They don't have any charge (so they can't use credit cards).
23. Chemistry can best be defined as
24. Physical science is the study of matter and energy. It includes all but:
25. ..... is an ELEMENT since it is only made up of one type of atom.
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