Unit 5 ReviewPeriodic Table & Trends

1. Which of the following groupings contains only representative elements:

A. Cu, Co, Cd

B. Al, Mg, Li

C. Fe, Na, Pb

D. Ne, Kr, Ti

2. What is true about the electron configurations of the representative elements?

A. s and p sublevels filled or fillingB. s, p, and d sublevels fillingC. s, p, d, and f sublevels fillingD. Filled d sublevel

3. The metals in Groups 1A, 2A, and 3A ___ electrons when forming ions.

A. Gain electronsB. Lose electronsC. Gain protonsD. Lose protons

4. Which of the following elements has the smallest radius:

A. NaB. RbC. AlD. F

5. How does the size of an ion compare to the atom it came from?

A. Cations are larger than their neutral atom.B. Anions are larger than their neutral atom.C. Atom and ion are the same size

6. The modern periodic table is arranged according to _____.

A. Atomic numberB. Atomic massC. Groups having similar chemical propertiesD. Both A & C

7. In which of the following groups of ions are the charges all shown correctly:

A. Li1-, O2-, S2+,

B. Ca2+, Al3+, Br1-

C. K1+ , P3- , F1+

8. Which of the following elements is a nonmetal

A. FeB. GaC. CD. Hg

9. What is another name for the transition metals?

A. Group A elementsB. Group B elementsC. LanthanidesD. Actinides

10. Which of the following elements is a transition metal:

A. Copper

B. Cesium

C. IodineD. Aluminum

A. Decrease in shieldingB. Increase in shieldingC. Decrease in nuclear chargeD. Increase in nuclear charge

11. What is the factor that contributes to the increase in ionization energy from left to

right across a period?

12. To what category of elements does an element belong if it is a poor conductor of electricity?

A. MetalB. NonmetalC. Metalloid

13. What is the charge of a cation?

A. PositiveB. Negative

14. Which of these elements has the lowest electronegativity value:

A. AlB. MgC. K D. Cs

15. What element in the second period has the largest atomic radius?

A. LiB. BeC. FD. O

16. Which of the following elements is in the same period as phosphorus:

A. NitrogenB. AntimonyC. KryptonD. Argon

17. Who arranged the elements according to atomic mass, and used the arrangement to predict the properties of missing elements?

A. MosleyB. MendeleevC. RutherfordD. Newlands

18. For Group 2A metals, which electron is the most difficult to remove?

A. The firstB. The secondC. The thirdD. All of them

19. What is the element with the highest electronegativity value

A. FranciumB. FluorineC. OxygenD. Nitrogen

20. Which subatomic particle plays the greatest part in determining the properties of an element?

A. ProtonB. NeutronC. ElectronD. All of the above

21. Of the following, which one has the smallest first ionization energy:

A. PbB. GeC. SeD. Br

22. In which of the following sets are the charges given correctly for all the ions:

A. Na1+, Mg1+, Al1+

B. K1+, Sr2+, O2-

C. B3+ , O2- , Kr2+

23. Which of the following elements has the smallest ionic radius:

A. NaB. MgC. KD. Ca

24. How does atomic radius change from left to right across a period in the periodic table?

A. It increasesB. It decreasesC. It remains the same

25. How does atomic radius change from top to bottom in a group in the periodic table?

A. It increasesB. It decreasesC. It remains the same

26. As you move from left to right across the second period of the periodic table, ionization energy __.

A. IncreasesB. DecreasesC. Remains the same

27. Which of the following is a representative element:

A. FeB. MnC. MgD. Ag

28. Cations form when an atom ____ electrons.

A. gainsB. losesC. shares

29. What is the energy required to remove an electron from an atom in the gaseous state called?

A. Electron affinityB. ElectronegativityC. Ionization energyD. Ionic size

30. Which of the following decreases with increasing atomic number in Group 2A:

A. Ionization energyB. Atomic sizeC. Ionic sizeD. Number of protons

31. What is another name for the representative elements?

A. Group A elementsB. Group B elementsC. lanthanidesD. actinides

32. Each period in the periodic table corresponds to ____.

A. A vertical column of elementsB. A horizontal row of elementsC. A family of elements

33. Which of the following elements has the smallest first ionization energy:

A. SiB. GeC. PD. As

34. How many electrons does the ion Ca2+ contain?

A. 20B. 18C. 22D. 2

35. How many electrons are there in the highest occupied energy level of atoms in Group 5A elements?

A. 15B. 5C. 7D. 33

36. How many electrons are present in the d sublevel of a neutral atom of copper?

A. 1 B. 2C. 9D. 10

37. How many electrons are in a rubidium ion, Rb1+?

A. 37B. 38C. 36D. 1

38. What is the usual charge on an ion from Group 7A?

A. +1B. -1C. 0D. -2

Answers

1.B 11.D 21.A 31.A2.A 12.B 22.B 32.B3.B 13.A 23.B 33.B4.D 14.D 24.B 34.B5.B 15.A 25.A 35.B6.D 16.D 26.A 36.D7.B 17.B 27.C 37.C8.C 18.C 28.B 38.B9.B 19.B 29.C10.A 20.C 30.A