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Chemistry

Chemistry · Quick practice · answer shown after each question

Nuclear chemistry and radioactivity

Question 1 of 10

Question 1 of 10

Nuclear fission is

Question 2 of 10

Question 2 of 10

After 2 half-lives, the fraction of a radioactive sample remaining is ___.

Question 3 of 10

Question 3 of 10

Carbon-14 dating is used to

Question 4 of 10

Question 4 of 10

Ghana has a research reactor at Kwabenya (GAEC).

Question 5 of 10

Question 5 of 10

After 8 hours, 1/16 of a radioactive sample remains. What is its half-life?

Question 6 of 10

Question 6 of 10

Isotopes used in medicine include cobalt-60 and iodine-131.

Question 7 of 10

Question 7 of 10

Nuclear fusion is

Question 8 of 10

Question 8 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 9 of 10

Question 9 of 10

After 1 half-life, the fraction of a radioactive sample remaining is ___.

Question 10 of 10

Question 10 of 10

Half-life is

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.