1. How many electrons in a calcium ion?

Question 1 of 22

2. State the fomula for the two ions in vanadium (V) oxide

Question 2 of 22

3. Why do ionic substance have high melting and boiling points?

Question 3 of 22

4. What is the formula for copper (II) sulfide?

Question 4 of 22

5. What are the elements in group 0 called?

Question 5 of 22

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

Question 6 of 22

7. Explain the term ionic bond

Question 7 of 22

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

Question 8 of 22

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

Question 9 of 22

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

Question 10 of 22

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

Question 11 of 22

12. 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 12 of 22

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

Question 13 of 22

14. What is the formula of the lithium ion?

Question 14 of 22

15. How can atoms get a full outer shell?

Question 15 of 22

16. How many electrons can the first shell hold?

Question 16 of 22

17. How many electrons in the outer shell of group 4 elements?

Question 17 of 22

18. State the formula of the zinc ion

Question 18 of 22

19. What is the formula for lithium nitride?

Question 19 of 22

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

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


 

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