The
Periodic Table: Periodic Table
Slide 14 of 37
The
Periodic Table
Fact
4: (Most
important) All of the elements in the same group have similar
PROPERTIES. This is how I thought of the
periodic table in the
first place. This is called
PERIODICITY.
E.g. consider the group 1 metals.
They all:
1)Are soft
2)Can be easily cut with a knife
3)React with water