1. Which list of elements consists of a metal, a metalloid, 10. An element that has a low first ionization energy and and a nonmetal? good conductivity of heat and electricity is classified as a A) Li, Na, Rb B) Cr, Mo, W C) Sn, Si, C D) O, S, Te A) metal B) metalloid 2. The elements on the Periodic Table are arranged in order C) nonmetal D) noble gas of increasing 11. Which phrase describes the molecular structure and properties of two solid forms of carbon, diamond and A) atomic mass B) atomic number graphite? C) molar mass D) oxidation number A) the same molecular structures and the same 3. Which list includes elements with the most similar properties chemical properties? B) the same molecular structures and different A) Br, Ga, Hg B) Cr, Pb, Xe properties C) O, S, Se D) N, O, F C) different molecular structures and the same 4. The elements in Group 2 are classified as properties D) different molecular structures and different A) metals B) metalloids properties C) nonmetals D) noble gases 12. The element sulfur is classified as a 5. Compared to the atoms of nonmetals in Period 3, the atoms of metals in Period 3 have A) metal B) metalloid C) nonmetal D) noble gas A) fewer valence electrons B) more valence electrons 13. Which element has chemical properties that are most similar to the chemical properties of fluorine? C) fewer electron shells D) more electron shells A) boron B) chlorine 6. The elements on the Periodic Table are arranged in order C) neon D) oxygen of increasing 14. At STP, which element is solid, brittle, and a poor conductor of electricity? A) atomic number B) mass number C) number of isotopes D) number of moles A) Al B) K C) Ne D) S 7. At STP, which element is a good conductor of 15. Which statement explains why neon is a Group 18 electricity? element? A) chlorine B) iodine A) Neon is a gas at STP. C) silver D) sulfur B) Neon has a low melting point. 8. A solid element that is malleable, a good conductor of C) Neon atoms have a stable valence electron electricity, and reacts with oxygen is classified as a configuration. D) Neon atoms have two electrons in the first shell. A) metal B) metalloid 16. Which Group 14 element is a metalloid? C) noble gas D) nonmetal 9. Which element is a liquid at 305 K and 1.0 atmosphere? A) tin B) silicon C) lead D) carbon A) magnesium B) fluorine 17. Which list of elements consists of metalloids, only? C) gallium D) iodine A) B, Al, Ga B) C, N, P C) O, S, Se D) Si, Ge, As 18. Which element has both metallic and nonmetallic 26. Aqueous solutions of compounds containing element X properties? are blue. Element X could be A) Rb B) Rn C) Si D) Sr A) carbon B) copper 19. At STP, both diamond and graphite are solids C) sodium D) sulfur composed of carbon atoms. These solids have 27. Which ionic compound dissolves in water to form a A) the same crystal structure and the same properties colored solution? B) the same crystal structure and different properties A) Ca(NO3)2 B) Cu(NO3)2 C) different crystal structures and the same properties C) KNO3 D) Al(NO3)3 D) different crystal structures and different properties 28. Which set of properties is most characteristic of 20. The two forms of oxygen, O2(g) and O3(g), have transition elements? A) different molecular structures and identical A) colorless ions in solution, multiple positive properties oxidation states B) different molecular structures and different B) colorless ions in solution, multiple negative properties oxidation states C) identical molecular structures and identical C) colored ions in solution, multiple positive properties oxidation states D) identical molecular structures and different D) colored ions in solution, multiple negative properties oxidation states 21. Two forms of solid carbon, diamond and graphite, 29. The presence of which ion usually produces a colored differ in their physical properties due to the differences solution? in their A) K+ B) F– C) Fe2+ D) S2– A) atomic numbers 30. Which physical characteristic of a solution may indicate B) crystal structures the presence of a transition element? C) isotopic abundances A) its density D) percent compositions B) its color 22. Which statement explains why ozone gas, O3, and C) its effect on litmus oxygen gas, O2, have different properties? D) the effect on phenolphthalein A) They are formed from different elements. 31. Which element is most chemically similar to chlorine? B) They have different molecular structures. C) They have different oxidation numbers. A) Ar B) F C) Fr D) S D) They have different electronegativities. 32. Sodium atoms, potassium atoms, and cesium atoms have the same 23. The elements in Group 2 have similar chemical properties because each atom of these elements has the A) atomic radius same B) first ionization energy A) atomic number C) total number of protons B) mass number D) oxidation state C) number of electron shells 33. Which Period 4 element has the most metallic D) number of valence electrons properties? 24. In the ground state, which atom has a completely filled A) As B) Br C) Ge D) Sc valence electron shell? A) C B) V C) Ne D) Sb 25. Which compound forms a green aqueous solution?

A) RbCl B) CaCl2 C) NiCl2 D) ZnCl2 34. As the atoms of the Group 17 elements in the ground 38. As the elements in Group 17 are considered in order of state are considered from top to bottom, each increasing atomic number, the chemical reactivity of successive element has each successive element A) the same number of valence electrons and similar A) decreases B) increases chemical properties C) remains the same B) the same number of valence electrons and 39. Which of these elements has physical and chemical identical chemical properties properties most similar to silicon (Si)? C) an increasing number of valence electrons and similar chemical properties A) germanium (Ge) B) lead (Pb) D) an increasing number of valence electrons and C) phosphorus (P) D) chlorine (Cl) identical chemical properties 40. Which electron configurations represent the first two 35. In which group of the Periodic Table do most of the elements in Group 17 (VIIA) of the Periodic Table? elements exhibit both positive and negative oxidation A) 2-1 and 2-2 B) 2-2 and 2-3 states? C) 2-7 and 2-8-7 D) 2-8 and 2-8-7 A) 17 B) 2 C) 12 D) 7 36. Which Group of the Periodic Table contains atoms with a stable outer electron configuration? A) 1 B) 8 C) 16 D) 18 37. In Period 3, from left to right in order, each successive element will A) decrease in electronegativity B) decrease in atomic mass C) increase in number of protons D) increase in metallic character