MY 5 ELEMENTS

PLUTONIUM (Pu)

PLUTONIUM HISTORY

• Discovered in 1941 by Dr. Glenn Seaborg ,Edwin McMillan, and Kennedy
• The metal has a silvery appearance and takes on a yellow tarnish.
• Named after the dwarf planet Pluto.

PLUTONIUM SIGNIFICANCE

• Key element for developing nuclear bombs.
• Radioactive material used for nuclear purposes
• Self-generates nuclear radiation.

PLUTONIUM PRODUCTS

• Atomic bombs
• Power up Apollo 14's Lunar flight
• Nuclear power

URANIUM (U)

URANIUM HOSTORY

• Discovered in 1789 by a German scientist named M. S. Klaproth.
• Found within pitchblende ores
• Radioactive property discovered by 1896

URANIUM SIGNIFICANCE

• Source of energy for nuclear power plants.
• Depleted uranium is used to protect tanks.
• May be used for bullets.

URANIUM PRODUCTS

• Nuclear energy
• Chemical bombs
• Army vehicle protection.

HOLMIUM

HOLMIUM HISTORY

• Discovered by J. L. Soret in 1879
• A lustrous metal with a silvery color
• Slowly attacked by Oxygen and dissolves in acid.

HOLMIUM SIGNIFICANCE

• Used to create an artificially-generated magnetic field
• Also used in nuclear reactors and nuclear rods.
• One of the rarest elements found on Earth.

HOLMIUM PRODUCTS

• Used for producing magnetic fields.
• Nuclear energy
• Yellow gas coloring

TUNGSTEN (W)

TUNGSTEN HISTORY

• Discovered in 1783 by Fausto and Juan Jos de Elhuyar
• A lustrous silvery metal that resists attacks by oxygen and acids

TUNGSTEN SIGNIFICANCE

• Has the highest melting point
• Often used for lightbulbs

TUNGSTEN PRODUCTS

• Light bulbs
• Cement carbide
• X-ray tubes

ASTATINE (At)

ASTATINE HISTORY

• Discovered in 1940 by D. R. Corson
• A highly radioactive material

ASTATINE SIGNIFICANCE

• Never found outside nuclear facilities or research plants
• Existence may only be 30 grams in the Earth's crust.

ASTATINE PRODUCTS

• Used for nuclear purposes