In 1869
in order of atomic mass
fire is made up of elements so technically it is not in the periodic table.
Harilium is a made up part to a periodic table some one had made up
There are 18 groups that make up The Periodic Table of Elements.
In 1869
The vertical columns in a periodic table are called Groups.
the periodic table is set up by atomic number, obviously. the atomic number is equal to the amount of protons, so the periodic table is set up by amount of proton order. During the time more than 100 versions of the periodic table were proposed. See the link bellow for some details; also the links of this...link.
The periodic table is set up as a series of rows and columns. The rows are referred to as the series or the period.
in order of atomic mass
in the increasing order of atomic number
he measerd elements by atomic weight and/or mass
The periodic table contains 18 columns known as groups and 7 rows known as periods. The properties of the elements are found to be periodic when arranged in order of increasing atomic number.
Information is set up by giving atomic number and element symbol.Elements are arranged in order of increasing atomic no.
The periodic table is entirely made up of elements.
Dmitri Mendeleev came up with the modern Periodic Table in 1869.
Simply, the periodic table is set up by listing elements by their atomic number, or the number of protons in an atom's nucleus.