Nuclear chemistry and radioactivity

Question 1 of 10

Nuclear fission is

Question 2 of 10

Complete and explain the nuclear equations: (a) ²³⁸₉₂U → ²³⁴₉₀Th + ?, (b) ²³⁴₉₀Th → ²³⁴₉₁Pa + ?, (c) ¹⁴₆C → ? + ⁰₋₁e.

Question 3 of 10

An alpha particle is

Question 4 of 10

When a nucleus emits an alpha particle, its atomic number

Question 5 of 10

The splitting of a heavy nucleus into two lighter nuclei is called nuclear ___.

Question 6 of 10

Distinguish between nuclear fission and nuclear fusion, with an example equation of each, and explain why both release large amounts of energy.

Question 7 of 10

Carbon-14 dating is used to

Question 8 of 10

After 12 hours, 1/16 of a radioactive sample remains. What is its half-life?

Question 9 of 10

Alpha particles are stopped by a sheet of paper.

Question 10 of 10

Ghana has a research reactor at Kwabenya (GAEC).