Currently 112 elements.
You shove the peridic table up your a hole
8 maximum number
i dont know but look at this.. http://www.hollandchristian.org/kkamps/files/alienperiodictable.pdf
Group 7, the halogens, contains two gases, fluorine and chlorine.
on the right side of the peridic table
Dmitri Mendeleev
Element 4 Beryllium
verticle rows are grouped
It is a table in which chemical elements are presented in order of their atomic numbers.
Mg for magnesium
Currently 112 elements.
You shove the peridic table up your a hole
Atomic Mass
Gold (Au) is classified as a transition metal.
This chemical element is helium.
he came up with the theory of atomic numbers