Why are properties such as colour, state, and taste not used to arrange elements on the first periodic table?

can predict the properties of new , because it organizes the elements according to their atomic numbers. Creating new elements is not a simple process. Scientists use a particle...

The periodic trend states that in the same group (column) in have similar properties.

Including Hydrogen (though Hydrogen is sometimes not put obviously as part of group 1)

Atoms from the same Group of have the same number and symmetry of , and this electronic similarity should give rise to similar chemistry. And indeed it does.......

The modern Periodic Table graphically describes the electronic structure of the . To a first approximation, elements that are members of the same Group have the same number of ,...

In 1869, Mendeleev suggested a classification that had the elements listed in order of increasing , and the elements that had similar properties were regrouped in families one above each...

A metalloid is an element whose properties are "in between" those of . For example, metals are excellent electothermal conductors, and nonmetals are non-conductors. Metalloids are described as semiconductors....

The Group number represents the number of . And thus the alkali metals have the ONE valence electron, and the alkaline earths have TWO . And typically, they lose...

And electronic structure directly influences the observed chemistry. And thus is divided into Groups, i.e. the vertical columns, whose members have more or less the same number of , and...

Atomic size decreases across a Period, and increases down a Group. As $Z$ increases, the nuclear charge becomes larger and electronic orbitals contract. Atomic radii contract across a Period from...