Friday, October 15, 2004

Lesson 18 - Unit Review

The Periodic Table

Mendeleev, Dmitri
(1834-1907): Russian chemist born at Tobolsk, Siberia.

He studied science at St. Petersburg and graduated in 1856.

In 1863 he was appointed to a professorship and in 1866 he succeeded to the Chair in the University.

Mendeleev is best known for his work on the periodic table; arranging the 63 known elements into a Periodic Table based on Atomic Mass!

Moseley, Henry (1887-1915):

A British chemist who studied under Rutherford and brilliantly developed the application of X-ray spectra to study atomic structure

His discoveries resulted in a more accurate positioning of elements in the Periodic Table by closer determination of atomic numbers.

Our Current Periodic Table

Go to this address to have a little practice with your elements, periods, and families.

Good luck studying this weekend!

Remember to complete your review sheet and Homework.

Here is another review sheet for you if you want more practice courtisy of Morrow Galpern (an excellent resource for all you parents out there looking for lessons for Grade 9 Science

Below is the review for the unit.


At October 18, 2004 at 4:35 PM, Blogger andrewl200 said...

Hey Mr. D, it's me again.. haha

For the element research project, can we do a slide show with 'Microsoft PowerPoint' and do our presentation with a laptop and projector? If we don't have a laptop or projector, can we borrow one from the school?

Andrew Lei


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