Question

What isotope is created during the beta decay of carbon-14?A) O-14 B) B-14 C) N-14 D) B-10

What daughter isotope is produced during the alpha decay of Uranium-238? A) Pu-242 B) Th-236 C) U-234 D)Th-234

Answer 1

In beta decay, the atomic number increases by 1 and the atomic mass remains the same. So, carbon-14 produces N-14 after beta decay.

In alpha decay, the atomic number is reduced by 2 and the atomic mass is reduced by 4. So, Uranium-238 produces Th-234 after alpha decay.