Multiple Choice
One of the hypotheses involved in the discovery of radium was:
A) Pure uranium contained an unknown element later known as radium.
B) The intense rays emitted by pitchblende were caused by uranium.
C) The intense rays emitted by pitchblende were caused by impurities in the crystals.
D) It would be possible to produce a radioactive isotope of barium.
E) Mendeleev's periodic table of the elements was incorrect in some respects.
Correct Answer:
Verified
Correct Answer:
Verified
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