Name _____________________________________ Date ______________________ Period ________
Goal : Create cards that reveal specific properties of various elements and their atoms.
Method : You will be using several websites to gather information. Follow directions as to which website gives the best information in each category. Neatly fill in the cards so that all information is legible. You have 26 elements to research within your group. Divide the elements as evenly as possible and sign the back of all cards you completed. Follow the template below when filling out your cards.
Assignment #1
– Due _______________________: Fill in all info from website #1.
Assignment #2
– Due _______________________: Fill in all remaining info.
Atomic number
Element name
Atomic mass
Physical description
Chemical properties
121
Elementium
El
__x___ protons
__y__ neutrons
360.35 amu
Atomic radius
225 pm
__z__ electrons
X p
Y n
Silvery metal, solid at room temperature
Reactivity with:
Air: none
HCl (hydrochloric acid): mild
HNO
3
(nitric acid): mild
NaOH (sodium hydroxide): vigorous
Bohr model
Websites :
1. www.chemicalelements.com -- use to find: atomic number, element name, atomic mass, numbers of protons, neutrons, and electrons, the Bohr atom model for this element (atomic structure), and the color
(put with physical description).
2. education.jlab.org/itselemental/index.html – whether the element is a metal, metalloid (semi-metal), or non-metal and the state of matter for this element at room temperature (both go with physical description).
3. www.chemicool.com – under reactions, you will get the information for reactivity
4. http://www.dartmouth.edu/~chemlab/info/resources/p_table/Periodic.html -- atomic radius
Ohio Modeling Workshop 2008