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

Question 1 of 22

2. What is the formula for silver sulfate?

Question 2 of 22

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

Question 3 of 22

4. How many electrons in a lithium ion?

Question 4 of 22

5.

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

Question 5 of 22

6. All the atoms in group 7 have 7 electrons in their outer shell. What charge ions do they form?

Question 6 of 22

7. Explain the term ionic bond

Question 7 of 22

8. What is the formula for iron (III) nitride

Question 8 of 22

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

Question 9 of 22

10. 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 10 of 22

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

Question 11 of 22

12. How many electrons in a sodium atom?

Question 12 of 22

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

Question 13 of 22

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

Question 14 of 22

15. How can atoms get a full outer shell?

Question 15 of 22

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

Question 16 of 22

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

Question 17 of 22

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

Question 18 of 22

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

Question 19 of 22

20. 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 20 of 22

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

Question 21 of 22

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

Question 22 of 22