electron-capture transition
91Isotopes of osmium — Osmium (Os) has seven naturally occurring isotopes, 6 of which are stable: 184Os, 187Os, 188Os, 189Os, 190Os, and (most abundant) 192Os. The other one, 186Os, has an extremely long half life (2×1015 years) and for practical purposes can be… …
92Isotopes of tantalum — Natural tantalum (Ta) consists of two isotopes: 180mTa (0.012%) and 181Ta (99.988%). 181Ta is a stable isotope. 180mTa ( m denotes a metastable state) is predicted to decay in three ways: isomeric transition to the ground state of 180Ta, beta… …
93Isotopes of cerium — Naturally occurring cerium (Ce) is composed of 4 stable isotopes: 136Ce, 138Ce, 140Ce, and 142Ce with 140Ce being the most abundant (88.48% natural abundance); 136Ce, 138Ce, and 142Ce are predicted to undergo double beta decay but this process… …
94Isotopes of molybdenum — There are 33 known isotopes of molybdenum (Mo) ranging in atomic mass from 83 to 115, as well as four metastable nuclear isomers. Seven isotopes occur naturally, with atomic masses of 92, 94, 95, 96, 97, 98, and 100. Of these naturally occurring… …
95Isotopes of curium — Actinides Half life Fission products 244Cm 241Pu f 250Cf 243Cmf …
96Isotopes of mendelevium — Mendelevium (Md) is an artificial element, and thus a standard atomic mass cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized was 256Md (which was also the first isotope of any element… …
97Isotopes of nobelium — Nobelium (No) is an artificial element, and thus a standard atomic mass cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized (and correctly identified) was 254No in 1966. There are 16 known …
98Americium-242 — Americium 242m is a radioactive isotope of Americium with 95 protons and electrons and 147 neutrons and a mass of 242.0595492 g/mol. It has a half life of approximately 141 years, decaying: #99.54% of the time by isomeric transition (with a decay …
99RADIOACTIVITÉ — On appelle radioactivité la transformation spontanée d’un noyau atomique au cours de laquelle ce dernier émet un rayonnement. L’observation des effets de ce rayonnement a conduit à la découverte de la radioactivité et des radio éléments. On… …
100Atome — Un atome (grec ancien ἄτομος [atomos], « qui ne peut être divisé »)[1] est la plus petite partie d un corps simple pouvant se combiner chimiquement avec une autre. La théorie atomiste, qui soutient l idée d une matière composée de… …
