1. How many electrons in the outer shell of group 6 elements?

Question 1 of 23

2. Write the word equation to represent the reaction between hydrochloric acid and calcium

Question 2 of 23

3. Put these 3 alkali metals in order of reactivity, starting with the most reactive: potassium, francium, lithium

Question 3 of 23

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

Question 4 of 23

5. Predict what colour and state is astatine at room temperature

Question 5 of 23

6. 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 6 of 23

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

Question 7 of 23

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

Question 8 of 23

9. Which are described as basic: metal oxides or non-metal oxides?

Question 9 of 23

10. In halogen displacement reactions, electrons are transferred from one atom to another. What type of reaction is this?

Question 10 of 23

11.

If 2 similar test tubes contain acid, and a different metal sample is added to each, how might you tell which metal is more reactive?

Question 11 of 23

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

Question 12 of 23

13. Explain how galvanising prevents rusting

Question 13 of 23

14. An experiment investigates which of metals X and Z is more reactive. The result is X + ZSO₄ → XSO₄ + Z. Which metal is more reactive?

Question 14 of 23

15. What is reduced in this equation and what is meant by reduction? WO₃ + 3H₂ → W + 3H₂O

Question 15 of 23

16. Which is more reactive: gold, sodium, calcium or potassium

Question 16 of 23

17. Explain, by referring to the electronic configurations, why potassium is more reactive than sodium.

Question 17 of 23

18. Explain, by referring to the electronic configurations, why fluorine is more reactive than chlorine

Question 18 of 23

19.

If pieces of lithium, potassium and sodium were cut and exposed to air, how could observations of the different reactions indicate the relative reactivity of those 3 metals?

Question 19 of 23

20. Write the chemical equation for the reaction betweem sodium and water

Question 20 of 23

21. Describe the test for oxygen gas

Question 21 of 23

22. Describe an experiment to show that iron rusts quicker in salt water than rain water

Question 22 of 23

23. What colour and state is bromine at room temperature?

Question 23 of 23