1. Periodic table
By Peter Dembach

2. Dmitri Ivanovich Mendeleev
Dmitri Ivanovich Mendeleev
discovered the periodic table

3. As you go down a column, called groups, the
elements have the same number of valence
electrons, which gives them similar chemical
activity
Metals are on the left, nonmetals on the right
and metalloids along the zig-zag line that
divides the metals and nonmetals, inert gases
on the far right
In general the elements do get heavier as you
increase atomic number, but there are
variances

4. The table is organized by its similarities in metals
and other things

5. Copper
Atomic mass: 63.546 amu.
Atomic number: 29
Element symbol: Cu
Copper is used in many
things the most common is
the penny

6. Silver
Atomic mass: 107.8682 amu.
Atomic number: 47
Element symbol: Ag
Silver was used mostly in
old tea sets

7. Gold
Atomic mass: 196.96655 amu.
Atomic number: 79
Element symbol: Au
Gold is mostly seen
used in wedding rings.

9. The
End