1. Periodic Table
By:Chelsey Shockley
Period 4

2. Where, Who, and
How?
Was discovered in Russia
Dmitri Mendeleev was the man who created it.
Mendeleev created the table by gathering and
organizing elements

3. How is the table
The table is organized by
atomic number, metals,
nonmetals, metalloids, periods,
groups, and stability
The columns that go across are periods
The columns that go down are
groups.

4. Relationships between
elements
In each group or family the
elements have the same
number of valence electrons.

5. Element 1
Helium
Atomic Number-2
Element Symbol-He
Atomic Mass-4.002602
It is used in balloons
Helium is the second lightest element and is the second most abundant
element in the observable universe. Its abundance is similar to this figure in
the Sun and in Jupiter. Helium is named for the Greek God of the Sun, Helios

6. Element 2
Gold
Atomic Number-79
Element Symbol-Au
Atomic Mass-196.96
It is used on jewelry
Gold resists attacks by individual acids, but it can be dissolved by the aqua
regia, A total of 165,000 tones of gold have been mined in human history, as
of 2009. It has been claimed that most of the Earth's gold lies at its core, the
metal's high density having made it sink there in the planet's youth.

7. Element 3
Atomic Number-26
Element Symbol-Fe
Atomic Mass-55.84
You have to have iron in your blood to live and it is
uses in building
It is the most common element (by mass) forming the planet Earth as a whole,
forming much of Earth's outer and inner core, Pure iron is soft (softer than
aluminium), but is unobtainable by smelting., Iron is of greatest importance when
mixed with certain other metals and with carbon to form steel.

8. Sites
• http://www.aip.org/history/curie/
periodic.htm
• http://www.ptable.com/
• http://www.numbersleuth.org/
worlds-gold/