Homework Help: science 8th grade

Posted by sammie doodles :-) on Tuesday, September 27, 2011 at 7:36pm.

how many periods are there in the main body of the periodic table?

science 8th grade - sammie doodles :-), Tuesday, September 27, 2011 at 7:50pm
I need it big time!!!!!!!
science 8th grade - Astrogirl, Tuesday, September 27, 2011 at 8:35pm
There are 7. The bottom two rows on the periodic table are actually part of the sixth and seventh row so therefore there are just 7.
science 8th grade - SIRI, Tuesday, September 27, 2011 at 11:08pm
7 PERIODS

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