How Has The Periodic Table Changed

996 Words4 Pages

Dmitri Mendeleev was a russian Chemist who was once thrilled and excited to discover new things. As being a Chemist, Mendeleev was very fond of and addicted to his science and physics. One day Mendeleev decided to come up with his very own way to display and arrange a group of elements that exist and could really assist you. With this great idea and a lot of work and effort, the first Periodic Table was born. But since then science within itself has changed. The periodic table changing now affects a lot of things dealing with science. From years way back then up until now, the periodic table has really dramatically changed. It has changed as far as new elements being added to some elements being removed. Mendeleev’s periodic table was made/invented/published in the year 1869. Mendeleev’s table was arranged by relative atomic mass and some other …show more content…

For starters as explained before the way the tables are arranged is different. One way would be that since Mendeleev’s table was ever invented, several elements have been removed or rearranged. With Mendeleev’s table as many as 7 elements have been changed in their location. There is a gigantic and wide range of elements to choose from. Another way is that since Mendeleev’s table was created up until today, atomic numbers have been added to the current table. This atomic number alows you to know exactly how many protons are within the element itself. Also belive it or not some elements have even had their names changed since the time of Mendeleev’s Period Table as said before. Some of these elements are the following; Seaborgium,Hassium,Lawrencium,Meitnerium and these are just a few. Here are some ways that the two tables are similar. Mendeleev’s table is older. This if fact. But it is also fact that the new table still contains some of those elements. Another way would be that they are both tables that are amazingly displaying