Periodic table

1. How is the periodic table
used to classify and provide
information about all
known elements?

2. Elements
Science has come along
way since Aristotle’s
theory of Air, Water, Fire,
and Earth.
Scientists have
identified 92 Natural
elements, and created
about 28 others.

3. Developing a Periodic Table
• In 1869 Dimitri Mendeleev was working on a way to
classify elements.
•At the time, more than 60 elements had been
discovered.
• And he arranged the elements according to their
atomic mass

4. 100 table The periodic table is
a chart of the
elements arranged
according to their
atomic number in
rows and columns
according to their
physical and chemical
properties.

7. Symbol

8. What is the periodic table?
•The periodic table is a chart of the elements
arranged into rows and columns according to
their physical and chemical properties.
• It can be used to determine the relationships
among the elements.