No, there are still some out there. They just haven't been discovered.
It is The Periodic Table of Elements
Periodic table show that elements have properties which are periodic in nature. These properties can be grouped together.
All together there are 118 elements on the periodic table, 94 of which occur naturally on earth. http://en.wikipedia.org/wiki/Periodic_table_%28standard%29 They do also show a wide format of periodic table with additional elements that have not been discovered, isolated, or synthesized on earth. http://en.wikipedia.org/wiki/Periodic_table_(wide)
It groups elements with similar properties in vertical columns
There are only 117 out of 118 elements on the Periodic Table that have been identified by research groups. Only 112 of the 117 have been recognized by the IUPAC. So, technically, there are 118 elements.
Mendeleev's periodic table arranged elements by increasing atomic mass and grouped elements with similar properties together. Today's periodic table is similar, but it is arranged by increasing atomic number, which reflects the number of protons in an atom's nucleus. Both tables also show periodic trends in properties as you move across and down the table.
mass
The periodic table is layed out to show "Periodic" chemical properties such as the number of protons in the nucleus of the elemnt, and the number of valence electons it has.
By looking at the periodic table of the elements. Carbon is listed as a nonmetal.
The arrangement of all known elements in order of their atomic number is called the periodic table. The periodic table organizes elements based on their atomic number, which corresponds to the number of protons in their nucleus. This arrangement helps to show trends in physical and chemical properties of the elements.
The periodic table lists all known chemical elements arranged by their atomic number, electron configuration, and recurring chemical properties. It provides a structured way to understand and predict the behavior of elements based on their placement in the table.
There are many reactive elements. They show up more on the upper left of the Periodic Table. Some of these are plutonium, uranium, Mercury and lead.