Which of these scientists discovered radioactivity when a photographic plate was exposed by a piece of uranium?
A) Becquerel
B) Curie
C) Einstein
D) Rutherford
E) Thompson
Correct Answer:
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Q1: Which of these scientists characterized and began
Q3: Which of the following occurs during alpha
Q4: Thorium-234 decays by emission of a beta
Q6: Which type of radioactive emission is analogous
Q7: Which of the following occurs during gamma
Q8: Which of the following occurs during beta
Q8: Which particle completes this equation? Q9: Nuclear chemistry involves changes Q10: Radioactivity results from the decay of unstable Q11: Which of these is the correct representation
M=unstable
A)within the nucleus.
B)of valence
A)electrons.
B)very
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