Question
This physicist preceded Pierre Auger (oh-ZHAY) in the discovery of the Auger effect. For 10 points each:
[10m] Name this physicist who worked with Otto Hahn, Fritz Strassmann, and her nephew Otto Frisch to discover nuclear fission.
ANSWER: Lise Meitner (LEE-zuh MITE-nur) [Elise Meitner]
[10e] During the fission research, Meitner's group frequently measured this quantity for various isotopes, which is the time taken for an isotope's radioactivity to fall by a factor of two.
ANSWER: half-life [or half-lives]
[10h] Meitner and Hahn's interest in fission was initially piqued because some of the theories about the existing experimental data involved this element, an isotope of which Meitner and Hahn had discovered two decades prior.
ANSWER: protactinium [or Pa; or protoactinium; do not accept "actinium"]
<Joseph Krol , Science - Physics - Other/CL>
Summary
| 2023 NASAT | 06/17/2023 | Y | 9 | 15.56 | 100% | 56% | 0% |
Data
| Asia B | Arkansas | 0 | 10 | 0 | 10 |
| Illinois Blue | California | 10 | 10 | 0 | 20 |
| Illinois White | Asia A | 10 | 10 | 0 | 20 |
| Kentucky A | Ohio | 10 | 10 | 0 | 20 |
| New Jersey B | Maryland Gold | 10 | 10 | 0 | 20 |
| Missouri A | Maryland Red | 0 | 10 | 0 | 10 |
| Missouri B | Virginia | 0 | 10 | 0 | 10 |
| Illinois Orange | New Jersey A | 10 | 10 | 0 | 20 |
| Kentucky B | Pennyslvania | 0 | 10 | 0 | 10 |