Chpt 15 extra credit

Ice floats because it has a lower density and higher volume.

There one was a super hero named BerylliMAN, he was strong like steel and can cause deathly illnesses if in hailed . He protects the city of the periodic table. His arche nemesis was tellurium. BerylliMAN takes down his opponents poisoning them with his toxic powder. You can rarely find BerylliMAN on any given day he likes to stay hidden. He had help from his allies,  Aluminum Copper Cobalt andd Nickel, they make each other stronger. BerylliMAN has a very low atomic mass, and density, so it could turn invisible under x-ray lighting. Originally BerylliMAN is very hard and strong it is dark and shinny, but when it comes time to defend his city he steps up and fights. He heavily relies on his allies when it comes to battling.

hyper link

http://www.sciencegeek.net/tables/BPTable.pdf

one directionnnnnn

History of the periodic table

        The periodic table began in 1850 with only 55 elements. People began to question weather there was a pattern to these elements,a so began the hunt for the Periodic table. Dalton discovered that each element  had to be made up of its own particles. This struck on the foundation of the atomic theory. Then began the discovery that different atoms had different atomic weights. This was the first attempt to make order in the elements, although not all the weight were correct, he was on to something. Bezalius knew that the weight of elements was important, so he went on to measure the atomic weight of every element known. He discovered silicon, studied over 2,000 compounds and finally found the weight of 63 elements.  Dobereiner said that you have to know the elements chemical reactions to find the atomic weight. Mendevil was said to be the most brilliant scientist of his generation. He attended the national science convention and watched Cannizaro steal the show with his theories of atomic weights, and that set agreed standards. But later scientists found that even in ranged weight the elements still are not systematic. Newlands came along and discovered the Law of Octaves, and called it periodicity, and this said that every eighth element would have an odor. This was finally a pattern that they could work with. Mendeleev discovered the periodic table, and is called the Russian Leonardo Di Vinnci because of his contributions to science. He discovered the periodic table by playing "periodic solitaire", he wrote the atomic weight and the name of the element on a card and eventually found patterns by lining the elements up in different orders. Moseley also organized the periodic table, he did this according to atomic number, and was able to do this by the discovery of the proton.

       Mendeleev spent three days alone thinking about the organization of the periodic table, with today's distractions I don't think Mendeleev could have achieved his goals. Mendeleev spent those three days by him self with distractions, just his work. When i go to do my homework my phone rings i am tempted by my computer to get on facebook or twitter. This definitely effects my ability to focus and how well my work is done. with constants distractions i am not focusing and it takes me twice as long to do m work, i have to stay up late and I don't do my best work when i am tired. If i didn't have these constant distractions i would finish my work promptly and I think it would have a great effect on my grades.

Hey Mrs. Wimberly