1. Why is the boiling point of a larger molecule higher than that of a smaller molecule?

Question 1 of 16

2. 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 2 of 16

3. Where are the transition metals on the Periodic Table?

Question 3 of 16

4. What is the atomic number of an argon atom?

Question 4 of 16

5. How are elements arranged in the periodic table?

Question 5 of 16

6. Explain, in terms of electrons, why isotopes have the same chemical properties

Question 6 of 16

7. Describe the test for oxygen gas

Question 7 of 16

8. Give the definition of a covalent bond

Question 8 of 16

9. Explain, in terms of the arrangement of electrons in its atoms, why neon is very unreactive

Question 9 of 16

10. How many electrons in the outer shell of group 5 elements?

Question 10 of 16

11. Describe the formation of a covalent bond

Question 11 of 16

12. In the dot and cross diagram of the outer electrons showing the covalent bonding in a molecule of oxygen (O₂), how many electrons should be shown in areas 1, 2 and 3?

Question 12 of 16

13. Explain why carbon dioxide gas, CO₂, is a gas at room temperature

Question 13 of 16

14. Explain why atoms are neutral

Question 14 of 16

15. Describe the chemical test for water

Question 15 of 16

16. What is meant by the term molecule?

Question 16 of 16