1. How many electrons in a chloride ion?

Question 1 of 22

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

Question 2 of 22

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

Question 3 of 22

4. 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 4 of 22

5. State the fomula for the two ions in iron (II) sulfide

Question 5 of 22

6. How many electrons in the outer shell of group 7 elements?

Question 6 of 22

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

Question 7 of 22

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

Question 8 of 22

9. What is the formula for lithium chloride?

Question 9 of 22

10.

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

Question 10 of 22

11. Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)

Question 11 of 22

12. What are the elements in group 0 called?

Question 12 of 22

13. State the formula of the zinc ion

Question 13 of 22

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

Question 14 of 22

15. How many electrons in a magnesium ion?

Question 15 of 22

16. Describe the structure of an ionic compound, e.g NaCl

Question 16 of 22

17. Explain the term ionic bond

Question 17 of 22

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

Question 18 of 22

19. What is the formula for calcium nitride?

Question 19 of 22

20. Explain, in terms of structure and bonding, why sodium chloride has a very high melting point

Question 20 of 22

21. 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 21 of 22

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

Question 22 of 22