Tossup

A substance’s ability to undergo this process is roughly proportional to “Z-squared over A.” The reproduction factor and resonance escape probability appear in Fermi’s four-factor formula describing this process. (10[1])This process is analogized to a water droplet splitting down the middle in the liquid drop model. Lise Meitner (“LEE-zuh MIGHT-ner”), who co-discovered this process, was snubbed from the Nobel Prize (10[1])awarded to Otto Hahn. Graphite control rods moderate (10[2])this process (10[1])by emitting neutrons. (10[2])A chain reaction (10[1])of this process (10[1])occurs (-5[1])at the critical mass (10[1])for uranium-235. For 10 points, name this process in which a heavy nucleus splits into smaller ones, contrasted (10[2])with fusion. ■END■

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