Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Name: ___________________ Date:___________ Per. _____ Atoms and the Periodic Table Activity Purpose: To explore and experience the method in which scientists organized the periodic table Materials List: deck of playing cards (one per group) Procedure: 1. Take your deck of cards with your group and try to determine an orderly arrangement for their cards. (color, number, shape?) Be creative! 2. After completing their ordering, choose one card from the arrangement and write a procedure on locating its position in the arrangement 3. After the procedure, compare this arrangement to the arrangement of the Periodic Table. More specifically, compare the arrangement that Mendeleev used (based on atomic mass and the elements that were discovered because of this arrangement) with the modern arrangement created by Moseley (based on atomic number) 4. Create a vocabulary self-awareness chart for the Periodic Table of Elements with your group by filling out the table below. a. The word grid below will help you assess your understanding of the terms involved with the Periodic Table. b. Rate your understanding of each word with either a “+” (understand well), a “” (limited understanding or unsure), or a “-” (don’t know at all). c. Continue to revisit this chart in order to redefine your understanding as the unit progresses. d. Be sure to include the charge of the particles, the location where the particles are found, and their mass in relation to each other”. Word atom element atomic symbol proton electron neutron nucleus atomic number mass number average atomic mass isotope ions valence electrons atomic energy levels electron cloud + - Example Definition Analysis Questions: 1. What challenges did you come across throughout this activity? How might this apply to the challenges that Mendeleev and Moseley discovered during their particular arrangements as well? 2. Distinguish between Periods and Groups on the periodic table. (Definitions, Locations, Etc.) 3. Lead and mercury are two pollutants in the environment. From information about them in the periodic table, why are they called ‘heavy metals’? 4. Use the periodic table to list a metal, a metalloid, and a non-metal. 5. From information found on the periodic table, compare and contrast the properties of chlorine and bromine. 6. What changes in the periodic table would occur in Periods 1 through 4 if the elements were arranged according to increasing atomic mass instead of atomic number? How do we know that the arrangement by atomic number is correct?