Many elements have been synthesized by bombarding relatively heavy atoms with high-energy particles in particle accelerators. Complete

Question:

Many elements have been synthesized by bombarding relatively heavy atoms with high-energy particles in particle accelerators. Complete the following nuclear reactions, which have been used to synthesize elements.
a. ______ + 42He
b. 23892U +126C → _____ + 610n
c. 24998Cf + ______ → 260105Db + 410n
d. 24998Cf + 105B → 257103Lr + _______