Download The Periodic Table

Navigating the
Periodic Table
September
Sunday
Monday
Tuesday
Wednesday
1
2
Friday
Saturday
3
4
Payday
5
6
7
8
9
10
11
12
13
#
15
16
17
18
Payday
19
20
21
22
23
26
27
28
29
30
24
25
2004
The horizontal rows of the periodic table
are called PERIODS.
The elements in any group
of the periodic table have
similar physical and chemical
properties!
The vertical columns of the periodic table
are called GROUPS, or FAMILIES.
Periodic Law
When elements are arranged in order of
increasing atomic number, there is a
periodic pattern in their physical and
chemical properties.
Atomic Number
• The atomic number is
the number of protons
in the nucleus of an
atom of an element
• All atoms of a
particular element
have the same number
of protons
• What is the atomic
number of lithium?
Elements classified as metals
and nonmetals.
Alkali Metals
Alkaline Earth Metals
Transition Metals
Halogens
Noble Gases
Atomic Number
• The atomic number is
the number of protons
in the nucleus of an
atom of an element
• All atoms of a
particular element
have the same number
of protons
• What is the atomic
number of lithium?
• Elements are organized on the periodic table
by increasing atomic number.
Key for each element
13
Al
26.98
Aluminum
13- Atomic number tells us
the number of protons and
electrons
Al- Chemical Symbolabbreviation for name
26.98- Atomic mass= number
of protons + number of
neutrons
Aluminum- Chemical name
Properties of Metals
• Shiny luster
• Good conductors of electricity and heat
• Malleable (changes shape without breaking
when hit with a hammer)
• Ductile (can be stretched into a wire)
All of these properties result from loosely
held valence electrons in metals
Properties of Nonmetals
• Dull in luster
• Bad conductors of electricity and heat
• Not Malleable or Ductile (can be stretched
into a wire)
All of these properties result from more
tightly held valence electrons in
nonmetals