CHEMISTRY
2014-2015 SCHOOL YEAR
CLASSROOM: 510
CODE: SCS21
INSTRUCTOR: Ms. Bui
LAB ROOM: 506
LAB 08
ALIEN PERIODIC TABLE
Name_______________________________________
Date: ______________________________________
Period: _____________________________________
Subject: Chemistry
PRE-LAB: (________/6 points)
Instructions: You have 3 minutes to complete this task. This is individual work. You are seated and
silent.
Look at the Periodic Table and complete the table below by identifying 3 ways (arrangement method) in
which you think the Periodic Table is arranged. Make sure to include an example for each of the way.
Arrangement Method
Example
Materials:
Set of 40 Alien cards (85 sets)
Periodic Table
Lab Rubric
Pre-Lab: _________/6 points
Exploratory Activity: ____________/70 points
Post-Lab: ___________/24 points
Name_______________________________________
Date: ______________________________________
Period: _____________________________________
Subject: Chemistry
EXPLORATORY ACTIVITY:
ALIENS ARE HERE!
We woke up to an amazing
event today. An alien
spaceship has landed in
Brooklyn. The aliens seem
friendly and want to
establish relations with
Earth.
YOUR TASK: (______________/20 points)
Our scientists want to have a better understanding of the aliens and need your help in organizing the
aliens into an Alien Periodic Table. You will be working with a partner. This should take you about 10
minutes.
1. Arrange the aliens into group
a. Every alien within a group must share one common feature (Key Similarity)
b. Every alien within a group must share a feature that changes regularly as you move down
the group (Varying Trait)
2. Arrange the aliens into periods
a. Every alien within a period must share one common feature (Key Similarity)
b. Every alien within a period must share a feature that changes regularly as you move across
the period (from left to right) (Varying Trait)
Once you have completed arranging your alien cards into an Alien Periodic Table, call Ms. Bui over. She
will verify that you have the correct arrangement. Make sure you can provide REASONS on your
arrangement.
Questions: (__________/4 points)
1. How many groups of Aliens do you have? _____________
2. How many periods of Aliens do you have? ____________
Ms. Bui’s Chemistry Class
2
Lab 08
Name_______________________________________
Date: ______________________________________
Period: _____________________________________
Subject: Chemistry
Data Table: complete the following table by providing the key similarity and varying traits for each
groups and periods (______________/26 points)
Group or Period
(circle one)
group
period
group
period
group
period
group
period
group
period
group
period
group
period
group
period
group
period
group
period
group
period
group
period
group
period
Ms. Bui’s Chemistry Class
Number
Key Similarity
3
Varying Trait
Lab 08
Name_______________________________________
Date: ______________________________________
Period: _____________________________________
Subject: Chemistry
Drawing Activity: (_________/20 points)
It has come to our attention that there are actually 2 more types of aliens on this planet.
 The first type belongs in the first group but is a new period.
 The second type belongs in the first period but is a new group.
Instruction: List 5 traits describing each type of alien and provide a drawing
Type 1 (First group, new period)
Description:
1.
Drawing
2.
3.
4.
5.
Type 2 (First period, new group)
Description:
1.
Drawing
2.
3.
4.
5.
Ms. Bui’s Chemistry Class
4
Lab 08
Name_______________________________________
Date: ______________________________________
Period: _____________________________________
Subject: Chemistry
POST LAB (_________/24 points)
1. Compare the Alien Periodic Table to the Elemental Periodic Table. List three similarities. (9 pts)
a.
b.
c.
Before atomic numbers were known, Mendeleev developed a classification system for the 63 elements known
in 1872, using oxide formulas and atomic masses. He used an R in the oxide formulas to represent any
element in each group. The atomic mass was listed in parentheses after the symbol of each element. A
modified version of Mendeleev's classification system is shown in the table below.
2. Identify two characteristics used by Mendeleev to develop his classification system of the
elements (6 points).
3. Explain, in terms of chemical reactivity, whether or not Mendeleev would be able to include Group
18 (Noble Gas Group) in his version of the Periodic Table. State your claim and explain. (9 points)
Ms. Bui’s Chemistry Class
5
Lab 08