The Periodic Table of Elements

Science Activity
#3 - The Periodic Table of Elements

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All experiments must be done in the presence of a parent or teacher.

	Ideas		Key Words		Materials		Procedure
	Observations		Summary		Questions		WWW Links

Ideas to be Developed

The periodic table is the most important chemistry reference there is. It arranges all the known elements in an informative array.

Key Words

atom- the smallest particle of a chemical element that can take part in a chemical reaction.

nucleus- The nucleus is made up of positively charged particles called protons, and neutral particles called neutrons.

protons- a stable elementary particle with a positive electric charge.

electrons- a stable subatomic (smaller than an atom) particle with a charge of negative electricity.

chemical bonding- a strong force ofattraction holding atoms together in a molecule or crystal.

Materials Required

Procedure

DEMONSTRATION -
1. Use the search feature to help with the crossword puzzle. Demonstrate strategies of typing in good keywords from the clues.

Observations

Examine the periodic table and take note of some of the things you notice about this table.

Summary

Questions

1. Click here for the crossword puzzle. Complete and include in your science lab book.

2. What is the atomic weight of Boron?

3. What is something that uses the element Ca? Al?

4. What is the atomic symbol for sodium? In what common household product will you find sodium?

5. Who proposed the first periodic table?

BCIT Resource Centre (note: this is an excellent resource for more information on chemistry)

Howard Debeck Elementary School
8600 Ash Street Richmond, B.C. V6Y 1S2
Phone: 604-668-6281 - Fax: 604-668-6004

Richmond School District Homepage