This question may require the use of the Chemistry
Reference Tables or the Periodic
Table of Elements.|
Which equation is an example of artificial transmutation?
92U238 -> 2He4 + 90Th234
13AL27 + 2He4 -> 15P30 + 0n1
6C14 -> 7N14 + -e0
88Ra226 -> 2He4 + 86Ra222
Correct Answer Number: 2
Explanation: Transmutation means to change or transform atoms of one element into atoms of another element. Transmutation can be natural or artificial. In fairy tales it was popular to try to change metal or straw into gold. This still is impossible but with artificial transmutation, nuclei in a special laboratory are bombarded by high energy particles: protons, neutrons, or alpha particles (a helium nuclei). If the nuclei becomes unstable, it can result in another form of the same element (isotope) or a different element. Answers 1, 3 and 4 are examples of natural transmutation.
Notice in answer 2 there are 15 protons on the left side (13 plus 2 = 15) and 15 protons on the right side; atomic mass on the left is 27 + 4 or 31 and on the right it is 30 + 1 or 31. Remember in nuclear and chemical reactions, equations must be balanced: 15 protons on the right, 15 protons on the left.