Shared from National Geographic
Did you know there’s a prank hiding in one of the most widely recognized charts in science history? Look closely at the bottom row of the periodic table of elements…still don’t see it? It’s staring right at you at element 94, plutonium.
Continue reading “What You Probably Didn’t Know About the Periodic Table” »
Dmitri Mendeleev was an excellent teacher and searched for ways to make chemistry easier for his students. He began arranging the chemical elements in groups with similar characteristics which developed into today’s periodic chart of the elements. Mendeleev’s original chart included 63 elements; today we know 118. Though puzzled by the gaps in his first table, Mendeleev was confident the table was right and the missing elements to fit in the gaps would show up … sometime.
Continue reading “What Would Mendeleev Say About Synthetic Elements?” »