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səhifə | 239/366 | tarix | 10.01.2022 | ölçüsü | 0,69 Mb. | | #106324 | növü | Dərs |
| Key Words and Phrases:
matter (n) to affect
to be made up to migrate
substance (n) loosely
nucleus (n) abnormal
charge (n) to exert a farce
to exhibit to attract
fraction to restore
to exist
I Answer the following question:
What is all matter made up?
What does an electron exhibit?
Do protons and neutrons have electrical charge?
Do atoms of different elements have different numbers of protons?
Is the number of protons and electrons same for all elements?
How do electrons rotate around the nucleus?
What is called a free electron?
How many free electrons do copper have per cubic centimeter?
What does the flow of electric current depend on?
How many free electrons does rubber have?
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