Uranium

What is the atomic number of uranium?

• 96

• 94

• 92

• 90

Who first isolated uranium in 1841?

• William Hershel

• Martin-Heinrich Klaproth

• Eugene-Melchior Peligot

• Eugene-Melchior Klaproth

What is the main source of heat inside the Earth?

• Geothermal energy

• Fossil fuels

• Solar energy

• Uranium decay

Tags

NGSS.HS-ESS2-3

Which isotope of uranium is important for nuclear reactors?

• 232U

• 238U

• 235U

• 234U

Tags

NGSS.HS-PS1-8

What is the half-life of uranium-238?

• 8.5 billion years

• 6.5 billion years

• 2.5 billion years

• 4.5 billion years

Tags

NGSS.HS-PS1-8

Which chemical form of uranium is used during the uranium enrichment process?

• UF6

• UO2

• U308

• UF4

What is the most stable form of uranium found in nature?

• UO2

• UF6

• U308

• UF4

What is the density of uranium metal compared to lead?

• Cannot be compared

• More

• Less

• Equal

What hazard does finely divided uranium metal present?

• Radiation hazard

• Fire hazard

• Chemical hazard

• Explosion hazard

What is the concern related to the natural presence of uranium in many soils?

• Water pollution

• Generation of radon

• Soil erosion

• Air pollution