nuclear isomer
11Isómero nuclear — Un isómero nuclear es un estado metaestable de un átomo, producido por la excitación de uno o más protones o neutrones en su núcleo. Contenido 1 Introducción 2 Isómeros metaestables 3 Isómeros casi estables …
12Delayed nuclear radiation — is a form of nuclear decay. When an isotope decays into a very short lived isotope and then decays again to a relatively long lived isotope, the products of the second decay are delayed. The short lived isotope is usually a meta stable nuclear… …
13Induced gamma emission — In physics, induced gamma emission (IGE) refers to the process of fluorescent emission of gamma rays from excited nuclei, usually involving a specific nuclear isomer. It is analogous to conventional fluorescence, which is defined to be the… …
14Copernicium — roentgenium ← copernicium → ununtrium Hg ↑ Cn …
15Darmstadtium — meitnerium ← darmstadtium → roentgenium Pt ↑ Ds ↓ (Uhn) …
16Hafnium — lutetium ← hafnium → tantalum Zr ↑ Hf ↓ Rf …
17radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… …
18Technetium — molybdenum ← technetium → ruthenium Mn ↑ Tc ↓ Re …
19Isotopes 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… …
20Isotopes of caesium — Caesium (Cs) has 40 known isotopes. The atomic masses of these isotopes range from 112 to 151. Only one isotope, 133Cs, is stable. The longest lived radioisotopes are 135Cs with a half life of 2.3 million years, 137Cs with a half life of 30.1671… …
