Name______Period ______Chemistry Test #1
Part 1- Matching Terms: Please match the following terms with their definitions by writing the correct letter in the space provided (2 points each)
1)_____ ProtonA. The size of an ion
2)_____NeutronB. The amount of energy it takes to remove an electron from an atom
3)_____ElectronC. The electrons in the outer shell of an atom
4)_____ Atomic NumberD. The size of an atom
5)_____Atomic MassE. Neutral particle in the nucleus
6)_____AtomF. A positive or negatively charged particle
7)_____IonG. The mass of an atom which includes the protons and neutrons
8)_____Ionization EnergyH. Equal to the number of protons in an atom
9)_____ElectronegativityI. The smallest part of an element that maintains its chemical properties
10)_____Atomic radiiJ. Negatively charged particle
11)_____Ionic radiiK.Indicates the relative ability of its atoms to attract electrons in a bond
12)_____valence electronsL. Positively charged particle in the nucleus
Part II- True/False (2 points each). Please mark the following statements with a T if true, and an F if false. If false, please correct the statement.
13)_____ An atom contains most of its mass in the nucleus
14) _____ The last thing you should do before you leave the laboratory is wash your hands.
15) _____The number of protons added to the number of neutrons=atomic number.
16) _____ Nonmetals are located on the left hand side of the periodic table.
17) _____ Fluorine is the most electronegative element on the periodic table.
18) _____ Eating and drinking is strictly prohibited in the laboratory.
19) _____Halogens are the most reactive to water.
20) _____ Noble gases are inert; they do not readily react to other elements.
Part III-The Atom Chart: Please fill in the chart with the correct information (1 point each).
Element name / Element Symbol / Atomic Number / Protons / Neutrons / Atomic Mass / ElectronsPb / 82 / 207 / 82
Neon / 10 / 10 / 11 / 10
Cs / 55 / 78
Silver ion / 47 / 107 / 46
Copper (II) ion / Cu 2+ / 29 / 35 / 64
S2- / 16 / 16 / 18
Part IV-Calculating Average Atomic Masses: Calculate the average atomic mass using the information provided (5 points each).
21) An element has two isotopes: one of mass 63 u, the other with a mass of 65 u. If the relative abundance of the isotopes is 69.1 % and 30.9 %, respectively, find the atomic mass of the element. Show your work and give your answer to 3 significant figures.
HONORS 22) If the relative abundance of a neon isotope was 5.7%, and the rest was on Ne-20, what was the mass number of the minor isotope.
Part V- The Periodic Table: Provide the given information. (1 point each).
23) Name the group name to which each of the following elements belong:
Sodium ______
Calcium ______
Iron ______
Iodine ______
Neon ______
24) Using the elements listed, determine which element meets the following criteria:
FClRaK
Highest ionization energy ______
Lowest electronegativity ______
Largest atomic radii ______
Smallest ionic radii______
Most reactive to water ______
Part VI-Dot Diagrams: Complete the following dot diagrams (5 points each).
25) Oxygen
26) Nitrogen
27) Carbon