1. On the Periodic table what is the meaning of the word Group?

Question 1 of 16

2. In the dot and cross diagram of the outer electrons showing the covalent bonding of ammonia (NH₃), how many electrons should be shown in areas 1, 2, 3 and 4?

Question 2 of 16

3. Why do elements in the same group of the periodic table have similar chemical properties?

Question 3 of 16

4. If a substance has a simple molecular structure, what physical state might it be at room temperature?

Question 4 of 16

5. What is the total number of atoms in the formula Be(OH)₂ ?

Question 5 of 16

6. Where are non-metals found on the periodic table?

Question 6 of 16

7. What is special about the elements in group 0?

Question 7 of 16

8. Describe the chemical test for water

Question 8 of 16

9. Describe the test for chlorine gas

Question 9 of 16

10. Why is the melting point of a smaller molecule lower than that of a larger molecule?

Question 10 of 16

11. How many protons in a silicon atom?

Question 11 of 16

12. Give the definition of a covalent bond

Question 12 of 16

13. How many electrons in the outer shell of group 1 elements?

Question 13 of 16

14. Describe the formation of a covalent bond

Question 14 of 16

15. On the Periodic table what is the meaning of the word Group? What does that tell us about the electron configuration of the atom?

Question 15 of 16

16. Which particle(s) in an atom has the smallest mass?

Question 16 of 16