Nuclear Chemistry Practice

Nuclear power is generated using which of the following?A: UraniumB: HydrogenC: CarbonD: none of the above

• Uranium

• Hydrogen

• Carbon

• none of the above

How does nuclear fission occur?

• Protons gather in the nucleus of Uranium atoms and cause the nucleus to explode and release energy in the form of heat.

• Neutrons smash into the nucleus of Uranium atoms. The neutrons are then split in hald and release the energy in the form of heat.

A nuclear reaction where a nucleus splits into two smaller nuclei is... 

• Fission
• Fusion
• Gamma decay
• Beta decay

Negatively charged particles found outside of the nucleus are called

• electron
• protons
• neutrons
• nucleons

Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.

• Fusion
• Fission
• Tracing
• Decay

When nuclei decay, massive amounts of __________ is released.

• energy
• jello
• protons
• neutrons

The time needed for half of a radioactive sample to decay is called its __________.

• decay period
• period
• transmutation time
• half-life

The % of the parent isotope remaining after 2 Half Lives.

• 50%

• 25%

• 12.5%

• 6.25%

What is the only difference between two different isotopes of the same element?

• Number of neutrons

• Number of protons

• Number of electrons

• Size of atom

If 20 mg of iodine-131 is given to a patient, how much is left after 32 days? The half-life of iodine-131 is 8 days.

• 32

• 1.25

• 10

• 2.5