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____ .jame Date 21. The category of elements that is characterized by the filling off orbitals is the a. inner transition metals. C. alkali earth metals. b. alkali metals. d. transition metals. Class THE PERIODIC TABLE 22. Electronegativity a. generally decreases from left to right across a period, b. is the energy change that accompanies the loss of an election from a gaseous atom. c. generally decreases from top to bottom within a group. d. is generally higher for metals than for nonmetals, — 23. Atomic size generally a. increases from left to right across a period. b. decreases from top to bottom within a group. c. remains constant within a period. ci. decreases from left to right across a period. ChapterTestA A. Matching Match each description in Column B with the correct term in Column A. Write the letter of the correct description on the line. Column A Column B 1. metal a. positively charged ion 2. halogen b. an element whose highest occupied s or p sublevels are partially filled 3. inner transition metal c. the energy needed to remove an electron from an atom in the gaseous state 4. representative element ci. good conductor pf heat and electric current 5. ionization energy e. an element whose highest occupied s sublevel and a nearby d sublevel contain electrons 6. alkaline earth metal 7ãtiodJ 24. Of the following atoms, which one has the smallest first ionization energy? a. boron c. nitrogen b. aluminum d. silicon 25. The alkali metals do not include a.Li. b.Ca. C. Questions g. the tendency of an atom to attract electrons when the atom is in a compound 8. electronegativity ii. an element in which the highest occupied s and p sublevels are filled 9. transition metal L an element in Group 2A 10. noble gas c.Na. d.Rb. Answer the following in the space provided. 26. For the elements whose electron configurations end as follows, state the period and the group to which each element belongs. L any nonmetal in Group 7A — ___ 2 5g b. 4s 4 4 2 p 6p 2 c.6s 27. Write the configurations for the highest occupied energy level for each of the following € a.He j. an element whose highest occupied s sublevel and a nearbyfsublevel contain electrons - b. K B. Multiple Choice c.AI Choose the best answer and write its letter on the line. 11. In the periodic table, there is a periodic pattern in the physical and chemical properties of elements when they are arranged in order of irreasxrgatomic mass b. increasing e1ectronegativtry c. increasing atomic radius. ci. increasing atomic number. d. Kr e. 0 — a. Cs,Li,K b. Q,Si,RAr 12. WhIch sublevel corresponds to the transition metals in the periodic table? c.d a.s d.f b.p 13. The representative elements are a. inner transition metals. b. transition metals. c. Group B elements. ci. Group A elements. c. Ca, Ba,Be,Sr 29. Tell whether each of the following elements is an inner transition metal, a noble gas, an alkali metal, sri alkaline earth metal, or a halogen. Then give its period and group numbers a. calcium 14. Which of the following elements is a metalloid? a.As c.Br cLKr b.Se b. cesium 15. When a strontium atom loses two electrons to form an Sr 2 ion, the electrons are lost from the a. 5s orbital. c. 3d orbital. ci. 4forbital. b. 5porbitaL d. chromium 16. The element iodine, I, is a a. periods alkali metal. b. period 4 halogen. c. period 5 halogen. ci. period S transition metal. 17. The subatomic particle that plays the greatest role in determining the physical and chemical properties of an element is the a. proton. c. election. ci. photon. b. neutron. 18. Which of the following atoms would you expect to have the largest atomic radius? c.Ca a.I U. 19. From left to right across the second period of the periodic table, a. first ionization energy increases. c. electronegativity decreases. b. atomic radii increase. ci. atomic mass decreases. 20. For which element would you expect a large jump between the first and second ionization energies? c.Fe s.F d.Na bCa c. fluorine e. neon L sliver 30. Which element in each pair has the higher electronegativity value? a. Na, Mg b. Rb,I c. Cl,Br D. Essay Write a short essay for the following 31. Why does atomic size generally increase as you move down a group of the periodic table and