These elements are organized in the periodic table based on their atomic numbers, which increase sequentially from 1 (Hydrogen) to 118 (Oganesson). Each element has unique chemical properties and ...

What do they all mean? And what is the table actually used for? Dr. Tim: So this is the periodic table and each letter on it represents a different element. We call these letters symbols.

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

There are currently 118 known elements on the periodic table, and we've put 20 of them ... a very small part of the ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance ... The vis tellurique from De Chancourtois’s original publication (right) and a copy ...