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

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

Question 4 of 22

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

Question 5 of 22

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

Question 6 of 22

7. When are ions attracted to each other?

Question 7 of 22

8. How many electrons in a phosphide ion?

Question 8 of 22

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

Question 9 of 22

10. Explain the term ionic bond

Question 10 of 22

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

Question 11 of 22

12. Which group of atoms has a full outer shell?

Question 12 of 22

13. How can atoms get a full outer shell?

Question 13 of 22

14. How many electrons can the first shell hold?

Question 14 of 22

15. 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 15 of 22

16. State the formula for the lead (II) ion

Question 16 of 22

17. 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 17 of 22

18. State the electron configuration of the nitride ion

Question 18 of 22

19. What is the formula for sodium chloride?

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

Question 21 of 22

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

Question 22 of 22


 

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