Periodic Table
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PRESENTATION OUTLINE
THE PERIODIC TABLE ISN'T BORINGNES
IT WAS FOUNDED BY DMITRI MENDELEEV A LONG WHILE BACK 1869
Photo by [Crewe]
DMITRI MENDELEEV CREATED THE PERIODIC TABLE BECAUSE CHEMISTS WANTED A WAY TO PUT THE ELEMENTS IN ORDER
Group 1 is the first column of the periodic table they are the alkali metals. They all share common traits. They all react with water and air some explosively. For instance putting caesium in water can blow a hole in a submarine with the force of a depth charge.
Photo by Paul's Lab
Group 7 elements are non metals that decrease in reactivity down there group. Fluoride is at the top of the group and if combined with hydrogen will also explode.
Photo by arbyreed
Group 8 or 0 or the noble gases are non metals. They are boring and unreactive however that gives them a lot of practical uses that don't end in explosions.
Photo by jurvetson
Using the trends and patterns across groups and periods (horizontal rows) new element places can be predicted for the future. Therefore the periodic table, although over a century old, still isn't finished. Ununseptium is the most recent discovery and fell perfectly into its place for its properties
Photo by John "Pathfinder" Lester
