When the hydrogen isotope tritium-3 emits a beta particle, it becomes an isotope of
A) hydrogen.
B) helium.
C) lithium.
D) carbon.
E) none of the above
Question 2
In 1919 Rutherford performed the first historic artificial transmutations of
A) hydrogen to helium.
B) nitrogen to oxygen.
C) carbon 12 to carbon 14.
D) none of the above