2. Choose the solid that forms the most covalent bonds.
Be(s)
Mg(s)
Ca(s)
Sr(s)
Ba(s)

3. Choose the element with the smallest ionization energy:
Li
Na
K
Rb
Cs

4. Pick the most basic oxide in aqueous solution.
BeO
CO₂
BaO
SO₃
Al₂O₃

5. Within a group, as the atomic numbers of the elements increase, the:
ionization energies decrease
atomic masses decrease
elements become less metallic
atomic radii decrease

6. The strongest reducing agent in the alkali metals is:
K
Na
Cs
Fr
Li

7. Which group contains an element that forms the basis for geological materials and an element that forms the basis for biomolecules?
Group 1A
Group 4A
Group 5A
Group 7A
Group 1A, 4A, 5A, and 7A

8. Choose the element with the highest melting point.
Li
Na
K
Rb
Cs

9. Choose the element whose ion has the largest concentration inside a human cell.
Li
Na
K
Rb
Cs

10. Choose the element that is the strongest reducing agent in acqueous solution.
Li
Na
K
Rb
Cs

11. In a given period this group has the element with the smallest ionization energy.
Group 1A
Group 2A
Group 3A
Group 7A
Group 8A

12. Which group contains two elements that exhibit +2 and +4 oxidation states due to the inert pair effects?
Group 1A
Group 3A
Group 4A
Group 5A
Group 7A

13. Choose the element that is the strongest reducing agent in the gas phase.
Li
Na
K
Rb
Cs

14. Choose the metal with the largest first ionization energy.
Na
Mg
Al
K
Ca

15. Metallic sodium may be obtained from molten sodium chloride by:
electrolysis
neutralization
ionization
hydrolysis

16. Which of the following ions interferes with the action of detergents in hard water?
Na+
Ca2+
Mg2+
Ca2+ and Mg2+
Na+, Ca2+, and Mg2+

17. In a given period this group has the element with the smallest atomic radius.
Group 1A
Group 2A
Group 3A
Group 7A
Group 8A

18. Which of the following has the highest melting point?
Sr(s)
Be(s)
Mg(s)
Ca(s)
Ba(s)

19. Choose the metal that is found in the mineral dolomite.
Mg
Ca
Sr
Ba
all of these

20. Reacts with O₂ to form compounds with the general formula M₂O₃
Group 1A
Group 2A
Group 3A
Group 7A
Group 8A

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