1. Periodic Properties of Elements
Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., Bruce E. Bursten, and Catherine J. Murphy
Chapter 7
Periodic Properties of Elements
Dana & Michelle Chatellier
University of Delaware
© Copyright 2009, Pearson Education

2. An element that is a soft, gray solid reacts vigorously with water to produce a flammable gas and a basic aqueous solution. The element is most likely to be a:
noble gas.
halogen.
group 2A metal.
transition metal.

3. An element that is a soft, gray solid reacts vigorously with water to produce a flammable gas and a basic aqueous solution. The element is most likely to be a:
noble gas.
halogen.
group 2A metal.
transition metal.

4. Which choice below correctly lists the elements in order of increasing atomic radii?
Na < Mg < K < Rb
Mg < Na < K < Rb
Rb < K < Na < Mg
Rb < K < Mg < Na

5. Which choice below correctly lists the elements in order of increasing atomic radii?
Na < Mg < K < Rb
Mg < Na < K < Rb
Rb < K < Na < Mg
Rb < K < Mg < Na

6. Two ions are referred to as isoelectronic if they have the same number of:
electrons.
protons.
atoms.
neutrons.

7. Two ions are referred to as isoelectronic if they have the same number of:
electrons.
protons.
atoms.
neutrons.

8. Which statement is false?
Fluoride ions are larger than rubidium ions.
Bromide ions are larger than sodium ions.
Iodide ions are larger than rubidium ions.
Chloride ions are larger than potassium ions.

9. Which statement is false?
Fluoride ions are larger than rubidium ions.
Bromide ions are larger than sodium ions.
Iodide ions are larger than rubidium ions.
Chloride ions are larger than potassium ions.

10. The energy required to remove an electron from an atom in its ground state is known as the:
potential energy.
activation energy.
electron affinity.
ionization energy.

11. The energy required to remove an electron from an atom in its ground state is known as the:
potential energy.
activation energy.
electron affinity.
ionization energy.

12. Which choice correctly lists the elements in order of increasing electron affinity (most negative to least negative)?
O, Cl, B, C
O, Cl, C, B
Cl, O, C, B
Cl, O, B, C

13. Which choice correctly lists the elements in order of increasing electron affinity (most negative to least negative)?
O, Cl, B, C
O, Cl, C, B
Cl, O, C, B
Cl, O, B, C

14. Which choice correctly lists the elements in order of increasing first ionization energy?
Na < Ca < Al < Sn
Na < Al < Ca < Sn
Na < Al < Sn < Ca
Ca < Na < Sn < Al

15. Which choice correctly lists the elements in order of increasing first ionization energy?
Na < Ca < Al < Sn
Na < Al < Ca < Sn
Na < Al < Sn < Ca
Ca < Na < Sn < Al

16. An unknown solid gives a green flame test
An unknown solid gives a green flame test. When it was dissolved in water and reacted with NaOCl, a purple color appeared. The unknown is:
barium bromide.
calcium iodide.
barium iodide.
calcium bromide.

17. An unknown solid gives a green flame test
An unknown solid gives a green flame test. When it was dissolved in water and reacted with NaOCl, a purple color appeared. The unknown is:
barium bromide.
calcium iodide.
barium iodide.
calcium bromide.

18. Characteristics of noble gases include:
filled s and p subshells.
monatomic gases.
generally unreactive chemically.
all of the above.
Add periodic table here, if possible.

19. Characteristics of noble gases include:
filled s and p subshells.
monatomic gases.
generally unreactive chemically.
all of the above.
Add periodic table here, if possible.

20. Ozone is an allotrope of which element?
hydrogen
oxygen
sulfur
chlorine
Add periodic table here, if possible.

21. Ozone is an allotrope of which element?
hydrogen
oxygen
sulfur
chlorine
Add periodic table here, if possible.