A) Madame Curie
B) Wilson
C) Rutherford
D) Soddy
Correct Answer: C
Solution :
Artificial radioactivity was discovered by famous English scientist, Rutherford. He obtained oxygen isotope by bombarding nitrogen with a-particles, in 1919. \[{}_{7}{{N}^{14}}+{}_{2}H{{e}^{4}}\xrightarrow{{}}{}_{8}{{O}^{17}}+{}_{1}{{H}^{1}}\]
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