1. isotope - Noun
2. isotope - Verb
one of two or more atoms with the same atomic number but with different numbers of neutrons
Source: WordNet110 Zr, the heaviest isotope of zirconium, is the most radioactive, with an estimated half-life of 30 milliseconds. Source: Internet
40 Ca has a nucleus of 20 protons and 20 neutrons and is the heaviest stable isotope of any element that has equal numbers of protons and neutrons. Source: Internet
Along with the decrease of atmospheric carbon dioxide reducing the global temperature, orbital factors in ice creation can be seen with 100,000 year and 400,000 year fluctuations in benthic oxygen isotope records. Source: Internet
After slowing, neutrons may then be absorbed with an isotope that has high affinity for slow neutrons without causing secondary capture radiation, such as lithium-6. Source: Internet
Also, robust evidence that INMT can catalyze transmethylation of tryptamine into NMT and DMT could be provided with reverse isotope dilution analysis coupled to mass spectrometry for rabbit citation citation and human citation lung during the early 1970s. Source: Internet
Additionally, isotope ratios can provide much information about the ecological conditions under which extinct animals lived. Source: Internet