Thursday, 30 August 2012

Comparing Atom Sizes Lab


 For homework, we did a lab called comparing atom sizes. What we needed to do is simple. Find the relative radius of an atom by diving the radius of an element with the radius of the first element in the group. In order to understand the increasing and decreasing oh the relative radius of the atoms, we needed to do a graph which is showed above.

Conclusion: Predict where you would find the largest atom in any group of elements. What evidence would you need to tell if your prediction is correct? You would find the largest atom in a group at the bottom of the column. The evidence that I would need to tell if my prediction is correct, is making  table like the above one and finding all the relative radius of the family




Sunday, 26 August 2012

Video Of The Week- The Smallest Periodic Table Of Elements


By Meera Dolasia,

This is amazing. This week in class we learned about atoms and bonding and part of our lessons were the periodic tables. While I was looking through the internet for an awesome current event I found this. The smallest periodic table. On the video it says that a student at United Kingdom's University of Nottingham's Nanotechnology and Nanoscience center cut a hair from his professor's curly hair and put it in a sticky tape that conducts electricity and out it at a machine that 'carved' on the professor's hair the periodic table for a birthday present. To give you an idea of how small it is, it can fit in a sticky note a million times and have still space! The length of the periodic table is 89.67mm and the height is 46.39mm




The reason I chose this event is because it is related to our topic in class and I think that it is really cool because the smallest periodic table i have seen it is in our text book which is almost a A4 paper!This nanotechnology is the coolest thing i have ever since and i sure that professor had the best birthday gift.



Dolasia, Meera. "Video Of The Week - The World's Smallest Periodic Table Of
     Elements." Dogo News. N.p., 10 Jan. 2011. Web. 26 Aug. 2012.
     <http://www.dogonews.com/2011/1/10/
     video-of-the-week-the-worlds-smallest-periodic-table>.

http://www.dogonews.com/2011/1/10/video-of-the-week-the-worlds-smallest-periodic-table

Starting 8 Grade

8 Grade started so did science. This year we will use again blogs and I chose to use this one instead of making new ones. Here you are going to get informed about science news and what we do in class :)