Unit+4+-+Periodic+Trends

You have a chart with all the different types of elements on it.

Atomic radius gets bigger as you move left and down on the pt Electronegativity gets bigger as you move up to the right on the pt Ionization energy gets bigger as you move up on the pt Sheilding effect gets bigger as you move down on the pt

1) Which of the following elements are the least reactive? a. Alkali metals b. Noble gases **on the right side of the table** c. Halogens d. Alkaline earth metals e. Metalloids

2) Which of the following is a non-metal? **bromine** a. Lithium b. Bromine c. Mercury d. Bismuth e. Sodium

3) Which of the following is a metal? **thallium** a. Nitrogen b. Phosphorus c. Arsenic d. Thallium e. Silicon

4) Which of the following is a metalloid? **germanium** a. Carbon b. Sulfur c. Germanium d. Iridium e. Bromine

5) A row on the periodic table is called a _Period__. a. Group b. Period c. Isotopic mixture d. family e. Sub-shell

6) Which of the following ions occurs commonly? a. N-3 b. S-6 c. O-2 d. Ca-1 e. Cl –2 **O-2**

7) Which of the following ions occurs commonly? a. P+3 b. Br+7 c. O+6 d. Ca +2 e. K +3 **Ca+2**

8) Sodium oxide combines violently with water. Which of the following gives the formula and the bonding for sodium oxide? a. NaO b. NaO2 c. Na2O d. 2 Na2O e. Na2O2 **Na2O**

9) Barium Fluoride is used in embalming and in glass manufacturing. Which of the following gives the formula for barium fluoride? a. BaF2 b. Ba2F2 c. BaF d. Ba2F e. BaF4 **BaF2**

10) The colorless substance, MgF2 is used in the ceramics and glass industry. What is its name? a. Magnesium difluoride b. magnesium fluoride c. magnesium (II) fluoride **this one** d. monomagnesium difluoride e. monomagnesium difluoride

11) The substance CoCl2 is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist air. What is its name? a. Cobalt dichloride b. cobalt (II) chloride c. cobalt chloride d. cobaltic chloride e. copper II chloride **cobalt 2 chloride**

12) Which one of the following combinations of names and formulas of ions is incorrect? a. O2-1, oxide b. Al+3, aluminum c. NO3-1 nitrate **this one** d. PO4-3 phosphate e. CrO4-2 chromate

13) A red glaze on porcelain can be produced by using MnSO4. What is its name? a. Manganese disulfate b. manganese (II) sulfate c. manganese (IV) sulfate d. manganese sulfate e. manganese (I) sulfate **manganese sulfate**

14) The compound (NH4)2S can be used in analysis for trace amounts of metals present in a sample. What is its name? a. **Ammonium sulfide** b. diammonium sulfide c. ammonium sulfite d. ammonia (I) sulfite e. ammonium (I) sulfide

15) The substance, KClO3 is a strong oxidizer used in explosives, fireworks, and matches? What is its name? a. Potassium chlorite b. potassium chloride c. potassium (I) chlorite d. Potassium (I) chlorate e. **potassium chlorate**

16) Zinc acetate is used in preserving wood and in manufacturing glazes for porcelain. What is its formula? a. ZnAc2 b. ZnCH3C c. Zn(C2H3O2)2 d. Zn2C2H3O2 e. **Zn(C2H6O2)2**

17) Which of the following elements has the smallest atomic mass? a. Na b. Ar c. K d. Ca e. Kr **Na**

18) Which of the following elements has the smallest atomic radius? a. Li b. Ne c. Rb d. Sr e. Xe **Li**

19) Which of the following elements has the greatest atomic radius? a. Li b. Ne c. Rb d. Sr e. **Xe**

20) Which of the following elements has the largest ionization energy? a. Na b. Cl c. Ca d. Te e. Br **Cl**