Download 8-6 Atomic Derrick Pollins BY: DERRICK POLLINS SCIENCE BOOK

8-6
Atomic
BY: DERRICK POLLINS
SCIENCE BOOK
Derrick
Pollins
8-6
Atomic
Derrick
Pollins
Name: Gold
Symbol: Au
Atomic Number: 79
Atomic Mass: 196.96655 amu
Melting Point: 1064.43 °C (1337.5801 K, 1947.9741
°F)
Boiling Point: 2807.0 °C (3080.15 K, 5084.6 °F)
Number of Protons/Electrons: 79
Number of Neutrons: 118
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 19.32 g/cm3
Color: Gold Atomic Structure
Number of Energy
Levels: 6
First Energy Level:
2
Second Energy
Level: 8
Third Energy
Level: 18
Fourth Energy
Level: 32
Fifth Energy Level:
18
Sixth Energy
Level: 1
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Atomic
Derrick
Pollins
Facts
Date of Discovery: circa 3000 BC
Discoverer: Unknown
Name Origin: From the Old English word geolo (yellow)
Symbol Origin: From the Latin word aurum (gold)
Uses: electronics, jewelry, coins
Obtained From: crust of the earth, copper ores
Overview
Gold has been called the most beautiful of all chemical
elements. Its beauty has made it desirable for use in jewelry,
coins, and artwork for thousands of years. It was one of the
first pure metals to be used by humans.
Gold is one of the few elements that can affect politics and
economics. Wars have been fought over access to gold. Cities
and towns have sprung up and died out as gold was discovered
and then mined out. Many nations still count their wealth
according to the amount of gold they keep in storage.
Gold lies in the middle of the periodic table. The periodic table
is a chart that shows how elements are related to one another.
Gold is a heavy metal in a group known as the transition
metals. Gold is also known as a precious metal (as are platinum
and silver).
Large amounts of gold are still used in the manufacture of
coins, medals, jewelry, and art. Gold also has a number of uses
8-6
Atomic
Derrick
Pollins
in industry, medicine, and other applications. For example, one
radioactive isotope of gold is commonly used to treat cancer.