CHEMISTRY ASSIGNMENT DUE SEPTEMBER 1, 2014

Focus Questions

1. About how many known elements are there on Earth? Are they all

naturally made?

2. What are the main parts of an atom? Where are they located

within the atom?

3. What makes one element different from another?

4. How many protons are in a copper atom?

5. What is a property of copper that makes it useful to people?

6. How many substances are known to exist on Earth?

7. Who was Dmitri Mendeleev? What did he develop?

8. How is the Periodic Table of Elements organized? What determines

where an element is placed on the table?

9. What is the most common element in the universe?

10. What are the most common elements found in the Earth?

11. What is a compound? How is it different from an element?

12. What is a chemical bond?

13. What is the difference between a mixture and a compound?

14. What is a heterogeneous mixture? What are some examples?

15. What is a homogeneous mixture? What are some examples?

16. How does something dissolve?

17. What is a solution?

18. What are alchemists known for?

19. How is glass made? From what element is most glass formed?