Periodic Table in 3 Sections

1
Periodic Table in 3 Sections (1) Metals, (2)
Metalloids, (3) Nonmetals

Metals (on the left middle)
Metalloids (on the zig-zag line)
Nonmetals (on the right)
Nonmetals (on the right)
Metals (on the left and middle)
More Metals These are actually located above in
the 6th 7th periods (rows) in group (column)
three)
2

Periods The rows are called periods, and there
are 7 of them

• The period number tells you the number of
  electron shells

1st Period 1 Shell
2nd Period 2 Shells
3rd Period 3 Shells
4th Period 4 Shells

• This atom has two electron shells.

• So it is located in the second period.

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SPI 0807.9.9 Periodic Table
Science
Notes
Groups The columns are called groups (also
called families)

• There are 18 groups

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SPI 0807.9.9 Periodic Table
Science
Notes

• The group number can reveal the number of valence
  electrons

Note However this only works for groups 1 to 2
and 13 to 18
(see below)
1
18
2
13
14
15
16
17
This "trick" does not work with groups 3 to
12 (called transition metals)
Memory Trick Remember V V V for vertical V
for valence electrons
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Reactivity in Elements

• For groups 1 to 2
• Reactivity increases from right to left

• For groups 13 to 17
• Reactivity increases from left to right

(Leave out group 18they are non-reactive!)
Groups 1 to 2
Groups 13 to 17
Non-reactive
Again, ignore groups 3 to 12 for now (called
transition metals)
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Group/Family Names
Group 1 Alkali Metals
Groups 17 Halogens
Group 2 Alkaline-Earth Metals
Groups 18 Noble Gases
Groups 3 to 12 Transition Metals
Groups 13 to 16 Named after the element at the
top Example Group 13 is the Boron group, 14 is
the Carbon group
18
Groups 3 to 12 (called transition metals)