query: Half-Life of Radioactive Isotopes
positive_passages.docid: 3958
positive_passages.text: How does a half-life work?
negative_passages.docid: 27873
negative_passages.text: What is the lifetime of a typical hard disk?
negative_passages.docid: 61452
negative_passages.text: Alpha scattering, observations and conclusions
negative_passages.docid: 63067
negative_passages.text: How do particles "know" when to decay?
negative_passages.docid: 33476
negative_passages.text: How can beta plus decay be possible?
negative_passages.docid: 38482
negative_passages.text: What is $\Delta t$ in the time-energy uncertainty principle?
negative_passages.docid: 55566
negative_passages.text: Does Uranium-235 always split into Krypton and Barium in nuclear fission?
negative_passages.docid: 59185
negative_passages.text: jQuery Isotope filter to no items?
negative_passages.docid: 105784
negative_passages.text: Binding energy of a nucleus is positive?
negative_passages.docid: 2415
negative_passages.text: What are good, reliable databases of atomic spectra?
negative_passages.docid: 67504
negative_passages.text: Is there any thing other than time that "triggers" a radioactive atom to decay?
negative_passages.docid: 72741
negative_passages.text: Nuclear-transition laser
negative_passages.docid: 77786
negative_passages.text: Fusion vs. Fission
negative_passages.docid: 67578
negative_passages.text: Is this a correct demonstration for why elements above untriseptium cannot exist?
negative_passages.docid: 155484
negative_passages.text: Quantum mechanical picture of "electrons orbiting the nucleus"
negative_passages.docid: 83031
negative_passages.text: Is radioactive decay spontaneous or random?
negative_passages.docid: 136839
negative_passages.text: Is there a known isotope that generates anti-matter?