What is Uranium? Uses and Facts About Uranium – Geography Class 7

What is URANIUM?

It is a silvery-white radioactive mineral that has been used as an abundant source of energy for over 60 years.

Who Discovered It?

Uranium was discovered in 1789 by Martin Klaproth, a German chemist, in the mineral called pitchblende. It was named after the planet Uranus, which had been discovered eight years earlier before the discovery of Uranium.

Do you know?

• Uranium occurs in most rocks in concentrations of 2 to 4 parts per million and is as common in the Earth’s crust as tin, tungsten, and molybdenum.
• It occurs in seawater and can be recovered from the oceans.
• It has a melting point of 1132°C. The chemical symbol for uranium is U.

USES:-

Uranium is used in nuclear defense systems and for the nuclear generation of electricity. It is also used in nuclear medicine, X-ray machines, atomic dating, and electronic instruments.

Do You Know?

• Uranium is extensively used for the generation of Electrical energy by using Nuclear Power.
• The world’s First nuclear power was designed mainly for electricity production came into operations in 1957 at Calder Hall (UK).
• USA, France, Italy, Japan, China, Korea, Canada, and India.
• At present 3% of the energy production in India is obtained from Nuclear Power Plants. The First atomic power station in India was set up in Tarapur in 1969.
• Tarapur Plant in Palghar district, Maharashtra, is the first commercial nuclear power plant in India commissioned in 1969. The fuel pellets made of low-enriched uranium dioxide were produced at Elemash (Machine-building plant),

Questions:

1. Uranium is used in which of the following:-
a. Ultrasonography
b. Electrocardiography
c. Radiology
d. X-Ray machines

2. Colour of Uranium:-
a. Silvery – grey
b. Pink
c. Emerald Green
d. Silvery-white

3. Uranium is also used for generation of ________.
a. Fire
b. Heat energy
c. Sound energy
d. Electrical energy

4. Melting point of Uranium is:-
a. 32110 C
b. 12310C
c. 13210 C
d. 11320C

5. Uranium was discovered on:-
a. 1798
b. 1879
c. 1978
d. 1789

Read More: Distribution Of Uranium In The World: Geography Class 7

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