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1. The modern periodic table is arranged based upon atomic
A. isotopesB. numberC. densityD. radiusE. mass
2. In period 3 of the periodic table the atom with the largest atomic radius is located in group
A. 1B. 3C. 13D. 17E. 18
3. The elements that display the greatest nonmetallic character are located toward which corner of the periodic table?
A. Upper leftB. Dead centerC. Lower rightD. Lower leftE. Upper right
4. Which two elements will display the most similar chemical properties?
A. Aluminum and calciumB. Nickel and phosphorusC. Chlorine and sulfurD. Carbon and sulfurE. Lithium and potassium
5. Assuming the ground state, all of the elements located in group 13 of the periodic table will have the same number of
A. nuclear particlesB. occupied principal energy levelsC. electronsD. valence electronsE. neutrons
6. Which group contains elements in the solid, liquid, and gas phases at 298 K and 1 atm?
A. 1B. 2C. 16D. 17E. 18
7. An element that has a high first ionization energy and is chemically inactive would most likely be
A. a noble gasB. a transition elementC. an alkali metalD. a halogenE. an alkaline earth metal
8. Which salt solution is most likely to be colored?
A. KClO3 (aq)B. KNO3 (aq)C. K2CrO4 (aq)D. K2SO4 (aq)E. KCl (aq)
9. As the elements of period 2 are considered from left to right, there is generally a decrease in
A. ionization energyB. electronegativityC. metallic characterD. nonmetallic characterE. none of the above
10. Which element is a liquid at room temperature?
A. KB. HgC. I2D. MgE. Kr
11. At STP, which element is most expected to exist as a monatomic gas?
A. CalciumB. HydrogenC. NitrogenD. NeonE. Bromine
12. Nonmetals are poor conductors of heat and they also tend to
A. be brittleB. conduct an electrical currentC. have a shiny lusterD. be malleableE. lose electrons
13. Which statement does not explain why elements in a group are placed together?
A. They tend to have the same number of valence electrons.B. They tend to have a similar oxidation number.C. They tend to have the same electronegativities.D. They tend to have the same chemical reactivity.E. They tend to have the same charge when they form ions.
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