2. Who,Where,Why
• Who- Dmitri Mendeleev
• Where- The year 1985 and the year 1975
• Why-The periodic table was created to organize the elements
and provide physical and chemical properties, also to group
with elements like it.
3. How is the periodic table
organized
• The Periodic Table is organized by atomic number, metals,
nonmetals, metalloids, periods, groups, and stability.
4. Relationships
between the
• The elements are grouped according to the element.They also
go in increasing atomic mass and number.
• Higher boiling/melting points as you go in the middle of the
periodic table
• Each group of the periodic table have the same number of the
valence electrons
