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2 1) Which nonmetal exists as a diatomic solid? A) iodine B) phosphorus C) bromine D) antimony E) boron 2) Element X reacts with chlorine to form a compound with the formula XCl2. The oxide of element X is basic. Element X is A)Rb B)Ca C)Al D)H E)P 3) V{hich of the following has the largest ggcong! ionization energy? A) Ca -. B) Se C) Ge D)K E) Ga Consider the following electron configurations to answer the questions that folloro: (i) k2 2& 2p6 3s1 (it 1s2 z& zp6 39- (iii) 1s2 2* zp6 3& zp1 (iv) 1s2 2s2 Zp6 3& ZpA (v) 1J 2&zp6 a* eos 4)Thee1ectronconfigurationoftheatomthatisexpectedtohaveapositiveelectronaffinityis-. A) (i) B) (ii) c) tiii) D) (iv) E) (v) 5)Theelectronconfigurationbe1ongingtotheatomwiththehighestsecondionizationenergyis-. A) (i) B) (ii) c) (iii) D) (iv) E) (v) 6) The electron configuration that belongs to the atom with the lowest second ionization energy is A) (0 B) (ii) c) (iii) D) (iv) E) (v) 7) In generaf as you go across a period in the periodic table from left to right: (1) the atomic radius (2) the electron affinity becomes negative; and (3) the first ionization enersv A) decreases, increasingly, decreases B) increases, increasingly, increases C) decreases, decreasingly, increases D) decreases, increasingly, increases E) increases, increasingly, decteases 8) Which of the following is an isoelectronic series? A) o2-, pine,lta* B) Si2-, p2-,9-,c12- C) B5-, Si4-, As3-,Te2- D) S, CL Ar, K E) F-, Cl-, Br-,I- 9) - is credited with developing the concept of atomic numbers. A) Ernest Rutherford B) Michael Faraday C) Lothar Meyer D) Henry Moseley E) Dmitri Mendeleev B-1

3 ujt6fu 10) All the elements in group 8A are gases at room temperature. Of all the groups in the periodic table, only group contains examples of elements that are gas, liquid, and solid at room temperature. A) 5A B) sa c) 14' D) 2A E)'7A 11) Atomic radius generally increases as we move A) up a group and from left to right across a period B) up a group and from right to left across a period C) down a group and from left to right across a period D) down a group; the period position has no effect E) down a group and from right to left across a period 12) Elements in the modern version of the periodic table are arranged in order of increasing A) atomic mass B) atomic number C) oxidation number D) average atomic mass E) number of isotopes 13) Consider the following properties of an element: (i) It is solid at room temperature. (i0 It easily forms an oxide when exposed to air. (iii) \alhen it reacts with water, hydrogen gas evolves. (iv) It mustbe stored submerged in oil. 1 /hich element fits the above description the best? A) magnesium B) copper C) mercury D) sulfur E) sodium 14)-havethelowestfirstionizationenergieso{thegroups1isted. A) Noble gases B) Alkaline earth metals C) Transition elements D) Alkali metals E) Halogens 15) The ion with the smallest diameter is A) 02- B) F- C) Br- D) Cl- E)r i6) \ /hich of the following correctly hsts the five atoms in order of increasing size (smallest to largest)? A)O < F < S < Ba < Mg B)F < O < S < Ba < Mg C)O < F < S < Mg < Ba D)F < O < S < Mg < Ba E)F. S < O < Mg < Ba 17) I /hich one of the following has the smallest radius? A) Cl B) Fe C)P D) Br E) Na B-2

4 #ttl- 18) What is the coefficient of H2O when the following equation is completed and balancer Ba (s) + H2O (l) * A)1 B)2 c)3 D)5 E) Ba(s) does not react with H2O (l). 19) Of the following, which gives the correct order for atomic radius for Mg, Na, P, Si and Ar? A)Mg > Na > P > Si > Ar B)Ar > P > Si > Mg > Na C)Na > Mg > Si > P > Ar D)Si > P > Ar > Na > Mg E)At > Si > P > Na> Mg 20) Nonmetals can be at room temperature. A) solid, liquid or gas B) liquid only C) liquid or gas D) solid only E) solid or liquid 21) Ail of the following are ionic compounds except A) Na2SO4 B) SiO2 C) NaCl D) K2o E) Li3N 22) In which of the following atoms is the 3s orbital closest to the nucleus? A) At B) Br c) cl D)I E) The 3s orbitals are the same distance from the nucleus in all of these atoms. 23) \a/hich of the following generalizations cannot be made with regard to reactions of alkali metals? (The symbol M represents any one of the alkali metals.) A) 2M (s) + S (s) * MZS (s) B) 2M (s) + 2H2O (l) * 2MOs (aq) + Hz G) C) M (s) + Oz (g) * MQ (s) D) 2M (s) + H2 (g) * 2MH (s) E) 2M (s) + Cl2 (g) * 2MCl (s) 24) The atomic radius of main-group elements generally increases down a group because A) effective nuclear charge increases down a group B) effective nuclear charge zigzags down a group C) the principal quantum number of the valence orbitals increases D) effective nuclear charge decreases down a group E) both effective nuclear charge increases down a group and the principal quantum number of the valence orbitals increases B-3

5 25) In which of the following atoms is the 2s orbital closest to the nucleus? A)P B) Si c) cl D)S E) The 2s orbitals are the same distance from the nucleus in all of these atoms. OdrTQ* 26) Ot the following species, has the largest radius. A) Kr B) Ar C) Br- D) Sr2+ E) Rb+ 24 \ /hich one of the following atoms has the largest radius? A) Ne B)S c) cl D)O E)F 28) Of the following elements, has the most negative electron affinity. A)B B)Al C)Cl D)Si E)P 29) The first ionization energies of the elements as you go from left to right across a period of the periodic tablg and as you go from the bottom to the top of a group in the table. A) increase, increase B) increase, decrease C) decrease, increase - D) decrease, decrease E) are completely unpredictable 30) \ ftich element would be expected to have chemical and physical properties closest to those of fluorine? A)o B)Cl C)Fe D)Ne E)S 31) Oxides of the active metals combine with acid to form A) metal hydrides B) hydrogen gas C) water and a salt D) metal hydroxides E) oxygen gas - 32) Of the following metals, exhibits multiple oxidation states. A) Al B)V C) Na D) Cs E) Ca 33) In which set of elements would all members be expected to have very similar chemical properties? A) S, Se, Sl B) Ne, Na, Mg C) Na, Mg, K D) O, S, Se E) N, O, F 34) Of the following elements, has the most negative electron affinity. A)B B)o C)S D)Na E)K 35) The reaction of a metal with a nonmetal produces a(n) A) base B) acid C) oide D) salt E) hydroxide -. B-4

6 36)2F2G)+2H2O(l)+_. A) 2 F- (aq) * 2 H+ (aq) + H2O2 (aq) B) 2 HF (aq)+ 2 HFo (aq) C) 2 HF2 (aq) * 2 OH- (aq) D) 4 HF (aq) * oz (g) votr,]-e_ E) 4 HF (aq) * (aq) 37) Na reacts with element X to form an ionic compound with the formula NaSX. Ca will react with X to form A) CaX2 B) CaX C) Ca3X D) Ca2X3 E) Ca3X2 38) Of the choices below, whidr gives the order for first ionization energies? A)S t Si > Cl > Al > Ar B)Cl>S>Al>Si>Ar C)Cl > S > Al > Ar > Si D)Ar > Cl > S > Si > Al E)Al > Si > S > Cl > Ar 39) Vvhich equation correctly represents the first ionization of phosphorus? A)P-(g) * P(g) + e- B)P*(g) + e- - P(g) C)P(S) + e- * P-(g) D)P(g) + P+(g) + e- E)P(g) + P-(g) * e- 40)ofthefollowingelements,-hasthemostnegativee1ectronaffinity. A) Cl B)I C)S D) Se E) Br 41) \ /hidt of the following correctly represents the second ionization of aluminum? A) Al+ (g) + tr12+ (g) * e- B) Al+ (g) * e- * Al (g) C) Al (g) * Al+ (8) + e- D) Al- (g) * e- * et2- (g) E) At+ (g) * e- * a12+ 6; tt2) Oxides of most nonmetals combine with water to form A) an acid B) hydrogen gas C) water D) water and a salt E) a base B-5

7 43) Which of the following is not a characteristic of metals? A) ductility B) malleability C) acidic oxides D) low ionization energies E) These are all characteristics of metals. '.,o&,ltt- 44)CU(g) + H2o(l) * A) Cl2 (aq) + H2o (l) B) 2 HCI (aq) * Q- G) c) 2 HCI (aq) * oz (e) D) 2 Cl- (aq) * H2o (l) E) HCI (aq) + HOCI (aq) 45) Which ion below has the largest radius? A) Br- B) Na+ C) F- D) f+ E) Cl- 46) Element M reacts with chlorine to form a compound with the formula MC12. Element M is more reactive than magnesium and has a smaller radius than barium. This element is A)Sr B)Be C)Ra D)Na E)K 47) Chlorine is much more apt to exist as an anion than is sodium. This is because A) chlorine has a greater ionization energy than sodium does B) chlorine is bigger than sodium C) chlorine is a gas and sodium is a solid D) chlorine has a greater electron affinity than sodium does E) chlorine is more metallic than sodium 48) Of the following atoms, which has the largest first ionization energy? A) Br B)P C)I D)C E)O 49) The substance, is always produced when an active metal reacts with water. A) H2o B) Cq c) NaoH D) Hz q q 50)-isisoelectronicwithargonandisisoelectronicwithneon. A) Ne-, K1+ B) Cl-, F- C) F+, F- D) Cl-, Cl+ E) Ne-, Ar+ 8-6