Friday, January 9, 2015

Electron dot diagrams

Students used their Bohr models from yesterday to create dot diagrams today.
HOMEWORK - if this is not finished then it is homework.

ATOM MODEL  - due Tuesday Jan 20

PURPOSE: To create a 3-D model of an atom.
PROCEDURE: 1. Your teacher will assign you an atom for your model.
The name of my atom is:______________________
2. You will do some research and record the following information about your atom:
A. Atomic number:_________________
B. Atomic mass:___________________
C. Mass number:___________________
D. Number of Protons:______________
E. Number of Neutrons:_____________
F. Number of Electrons:_____________
G. Arrangement of Electrons: K___ L___ M___
F. Make a 2-D sketch of your atom in the space below.
3. Use the information that you acquired from step #2 to construct a 3-D model of
your atom. Your model must show the following:
A. Be 3-Dimensional with the protons, neutrons, and electrons
represented in their correct locations and by their correct respective sizes.
B. Have a key attached to it that states the atoms
-Name
-Number of protons
-Number of neutrons
-Number of electrons
-Electron shell arrangement of the electrons
-Your name and period
C. Contain a string and paper clip so that you teacher can hang it in the room
or have a stand so that your model can be displayed on the counter.
GRADING: Will be based on how well you carry out the above procedures and neatness.

ATOM MODEL PROJECT GRADING RUBRIC
NAME:_______________________________________________________________________________________ PER:____
Atom model
Correct number of protons & placement of protons in the model: ____________ (2)
Correct number of neutrons & placement of neutrons in the model: ____________ (2)
Correct number of electrons & placement of electrons in the model: ____________ (2)
Respective sizes of protons, neutrons, and electrons is correct: ____________ (3)
(i.e. protons and neutrons are the same size electrons are smaller)
Key
Contains the students name and period: ____________ (2)
Contains the atoms name ____________ (2)
Correctly identifies the protons, neutrons, and electrons ____________ (3)
Correctly tells how many electrons are in the K, L, M, shells ____________ (4)
Overall Construction & Neatness
Did not do Poor Average Above Outstanding ____________ (10)
Average
(0) (4) (6) (8) (10)

Total Points ____________ (30)