Atoms
Periodic Table
Properties and Reactions
Vocabulary
Labs
100
When a neutral atom loses an electron, it becomes positively charged and is called  a _______________
cation
100
Name a noble gas.
Helium, Neon, Argon, Krypton, Xenon, Radon
100
Give an example of a physical property.
density, mass, conductivity, texture
100

The idea that mass is neither created nor destroyed is known as ________________

Law of Conservation of Mass

100

Balance the following chemical equation:  

Fe + Cl2  --->  FeCl3   

2Fe + 3Cl2 ---> 2FeCl3

200
What do you call the electrons in the outermost energy level of an atom?
valence electrons
200
What phase are most elements found when at room temperature?
solid
200
Give an example of a chemical property.
reacts with acid

corrosiveness

200

What contains only one kind of atom?

an element

200

Draw a Bohr Diagram for Aluminum (atomic #13, atomic mass of 27 amu)

see drawing

300

How many elements are in one molecule of sulfuric acid (H2SO4)?

3
300

Which element has an ion charge of -3 and four energy levels?

Arsenic (As)

300

If you mix a clear liquid with an orange liquid and the result is a solid red precipitate and a yellow liquid, what are the reactants in this reaction?

clear liquid and orange liquid

300

What describes how hard an atom pulls on the another atom's electrons?

electronegativity

300

Balance the following equation:

C7H16 + O2 --->  CO2 + H2O

C7H16 + 11O2 --->  7CO2 + 8H2O

400
How is atomic mass determined?
Mass of protons + neutrons
400

Name an element that has the same properties as carbon.

silicon, germanium, tin, or lead

400

Using the data table provided, which property(ies) would be the most useful in identifying Low Density Polyethylene?  Explain.

Density relative to water - because Low Density Polyethylene is the only substance that will float in water.

Flexibility - because Low Density Polyethylene is the only substance with good flexibility

400

What are polymers?

compounds made up of thousands of smaller, repeating monomers

400
Using the color key, make a model of carbon dioxide using 1 carbon and 2 oxygen atoms
show me your model
500
If an atom has an atomic number of 37 and it has 33 neutrons, what is its atomic mass?
70 amu
500
Describe the trend of ionization energy (in two directions) on the periodic table.
Ionization energy increases from left to right across a period and from bottom to top through a group.
500

Name 3 things that would indicate a chemical reaction took place.

change in color,formation of a precipitate, temperature change, production of gas


500

What are metalloids, and where can they be found on the periodic table?

Metalloids are elements whose properties are in between metals and nonmetals (semiconductors), and they can be found on the stepped line on the right side of the periodic table.

500

Using the know data, from which type of plastic would you choose to make an athletic water bottle? Explain.

Polyamide -- because it has a firm hardness, so it would be resistant to denting and scratching.  Also, it resistant to both hot and cold temperatures, so it wouldn't be affected by extreme weather.

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