Dmitri Mendeleev is credited with creating the first periodic table of elements in 1869, arranging the elements in order of increasing atomic mass and grouping them into columns and periods based on repeating properties. The periodic table displays a periodic repetition of chemical and physical properties when elements are arranged by atomic number, with metals generally to the left and non-metals to the right.

2.  Founder of the Periodic Table of Elements.
 Dmitri wrote the elements down in order of
increasing mass and found a pattern of
repeating properties.
 He grouped elements in columns (by similar
properties) and in periods.

3.  Many people
look at the
periodic table
as a piece of
art.
 Purchasing a
periodic table
can be
expensive. *Please not that this periodic table is not of
elements but of sucrose!

4.  When the elements are
arranged in order of increasing
atomic number, there is a
periodic repetition of their
chemical and physical
properties.

5.  Most of the elements metals.
 Metals are to the left of the
stair steps and non-metals are
to the left.
 The first element in a group is
always an active metal, the
last is always an inactive non-
metal.