1.

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

Question 1 of 22

2. Explain why magnesium oxide has a higher melting point than sodium chloride.

Question 2 of 22

3. What is the formula of the phosphide ion?

Question 3 of 22

4. What is the formula for iron (II) oxide

Question 4 of 22

5. What is the formula for potassium bromide?

Question 5 of 22

6. Explain, in terms of structure and bonding, why magnesium oxide has a higher melting point than sodium chloride

Question 6 of 22

7. What is needed to complete this diagram to show the ionic bonding in sodium chloride, NaCl ?

Question 7 of 22

8. How many electrons in a sodium atom?

Question 8 of 22

9. State the formula for the copper (II) ion

Question 9 of 22

10. What is needed to complete this diagram to show the ionic bonding in magnesium chloride, MgCl₂ ?

Question 10 of 22

11. How many electrons in the outer shell of group 3 elements?

Question 11 of 22

12. What do each of the following state symbols represent: (s), (l), (g), (aq)

Question 12 of 22

13. 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 13 of 22

14. What is the formula of the aluminium ion?

Question 14 of 22

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

Question 15 of 22

16. If iron oxide has the formula FeO, what is the formula of the iron ion?

Question 16 of 22

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

Question 17 of 22

18. When are ions attracted to each other?

Question 18 of 22

19. What holds ions together?

Question 19 of 22

20. Balance the following equation: WO₃ + H₂ → W + H₂O

Question 20 of 22

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

Question 21 of 22

22. 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 22 of 22