No there are still undiscovered elements
Chemists
There are 91 metals in the periodic table today, but new ones are added as time passes.
i don't know the scientist but it is the periodic table of the elements
well every known materialthat we asociate with is listed in the periodic table.
Henry Moseley
Dmitri Mendeleev.
he drew up a table that grouped elements according to their atomic weights, his table became the basis for the periodic table of elements used today.
Henry Moseley in 1914
Hydrogen is the first chemical element in the Periodic Table of Mendeleev.
The modern periodic table was invented by Dmitri Mendeleev in 1869. Mendeleev organized the elements by increasing atomic mass and grouped them based on similar chemical properties, which laid the foundation for the periodic table we use today.
Today (June 2013) the periodic table contain 118 chemical elements, natural or artificial.
Dmitri Mendeleev is known as the father of the periodic table of elements. He arranged the elements in order of increasing atomic weight and grouped them based on similar properties. Mendeleev's periodic table laid the foundation for the modern periodic table we use today.