Isotopes and Nuclear Reactions

What is the atomic number of Carbon-12?

• 8

• 7

• 6

• 5

Which isotope of Carbon is commonly used in radiocarbon dating?

• Carbon-10

• Carbon-12

• Carbon-16

• Carbon-14

Tags

NGSS.HS-PS1-8

What is the symbol for Deuterium, a Hydrogen isotope?

• D

• O

• N

• H

Which isotope of Hydrogen is used in nuclear fusion reactions?

• Protium

• Tritium

• Deuterium

• Helium-3

What is the main use of Uranium-235 in nuclear reactors?

• Acts as a moderator to slow down neutrons

• Used for cooling the reactor core

• Provides structural support to the reactor

• Fuel for sustaining a controlled chain reaction

Tags

NGSS.HS-PS1-8

Which isotope is commonly used in cancer treatment due to its high energy gamma radiation?

• Cobalt-60

• Plutonium-239

• Iodine-131

• Uranium-235

Tags

NGSS.HS-PS1-8

NGSS.HS-PS4-3

What is the main function of a moderator in a nuclear reactor?

• To generate electricity

• To slow down neutrons

• To cool down the reactor

• To speed up neutrons

What is the role of a control rod in a nuclear reactor?

• To control the rate of fission reactions by absorbing neutrons.

• To generate electricity directly

• To increase the speed of fission reactions

• To cool down the reactor core

Which isotope is used in the treatment of goiter?

• Iodine-129

• Iodine-135

• Iodine-131

• Iodine-133

Tags

NGSS.HS-PS1-8

What is the main application of Sodium-24 in industry?

• As a fuel additive

• Detecting leaks in pipelines and locating underground leaks in water systems

• In cosmetics production

• Used in food preservation