1. State the particles that are found within the nucleus of an atom

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. Explain why methane gas, CH₄, is a gas at room temperature

Question 3 of 16

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

Question 4 of 16

5. Describe the formation of a covalent bond

Question 5 of 16

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

Question 6 of 16

7. Explain how the atoms are held together in a hydrogen bromide molecule

Question 7 of 16

8. What is meant by the term atom?

Question 8 of 16

9. What colour is hydrated copper (II) sulfate?

Question 9 of 16

10. A gas is bubbled through limewater and the limewater goes cloudy. Identify the gas.

Question 10 of 16

11. How are elements arranged in the periodic table?

Question 11 of 16

12. How many neutrons in a typical atom of sulfur?

Question 12 of 16

13. What are the elements in group 0 called?

Question 13 of 16

14. On the Periodic Table what is the meaning of the word Period? What does that tell us about the electron configuration of the atom?

Question 14 of 16

15. Do larger molecules have higher or lower boiling points than smaller molecules?

Question 15 of 16

16. How many electron shells do the elements in the second period have?

Question 16 of 16