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Module 1 Unit 3 Assignment C

Module 1 Unit 3 Assignment C - the chair’s mass(it would...

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MODULE 1 UNIT 3 Assignment Part C 1. If atoms are constituted mostly of empty space, why doesn’t your chair go through the floor? 2 marks - My chair doesn’t go through the floor because the negative charge in the floor is being repelled by the negative charge in the chair. Because negative charges repel each other, it does not go through the floor. 2. If in your chair all the nuclei were separated from their atoms and put in a box, approximately how much space would they occupy? What would be the nuclei’s mass in relation to the chair’s mass? Why? 2 marks - They would occupy a very small space. However, the nuclei’s mass would be
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Unformatted text preview: the chair’s mass (it would weigh as much as the chair weighs) because most of the atomic mass is located in the nucleus. 3. In atoms, what changes during a chemical reaction? 2 marks- Atoms are exchanged (gained or lost) in order to form a new substance. 4. How many electrons occupy the valence shell of an atom of each of the following elements: a) Bromine - 7 b) Germanium - 4 c) Barium - 2 3 marks Total 9 marks Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit....
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