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SECONDARY THREE SCIENCE WORKSHEET

 Name: _________________________________________ 

Date:____________________ 

PERIODIC TABLE

1) What is an atom? Where can you find information on atoms?

2) Study the following structure of an atom.

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!) "nderstanding the #eriodic ta$le% we shall learn together how to use the #eriodic ta$le.

&) We shall now e'#lore what the following terms mean in the figure $elow.

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&a) (tomic num$er 

&$) (tomic sym$ol

&c) (tomic mass

) Now use the #eriodic ta$le and #ro*ide the following information.

a) (tomic num$er of +hlorine.

$) (tomic sym$ol for otassium.

c) (tomic mass of ,agnesium.

-OOO-

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