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Study with Quizlet and memorise flashcards containing terms like When will an unstable isotope undergo alpha decay and why, Describe what type of decay isotopes with a higher number of neutrons than proton do and explain the effect of the decay, Describe what type of decay isotopes with a higher number of protons than neutrons do and explain ...
Study with Quizlet and memorize flashcards containing terms like What does the nuclear stability curve show?, What is the ratio in the blue band?, What are isotopes if they lie off the blue band? and more.
Study with Quizlet and memorize flashcards containing terms like nuclear stability, Stable #s, radioactive and more.
26 Σεπ 2024 · Nuclear Stability. A nucleus is stable if it cannot be transformed into another configuration without adding energy from the outside. Of the thousands of nuclides that exist, about 250 are stable. A plot of the number of neutrons versus the number of protons for stable nuclei reveals that the stable isotopes fall into a narrow band.
29 Ιουλ 2023 · All the stable nuclei lie within a definite area called the zone of stability. For low atomic numbers most stable nuclei have a neutron/proton ratio which is very close to 1. As the atomic number increases, the zone of stability corresponds to a gradually increasing neutron/proton ratio.
12 Ιουλ 2023 · Learning Objectives. To understand the factors that affect nuclear stability. The nucleus of an atom occupies a tiny fraction of the volume of an atom and contains the number of protons and neutrons that is characteristic of a given isotope.
Nuclei with certain numbers of nucleons, known as magic numbers, are stable against nuclear decay. These numbers of protons or neutrons (2, 8, 20, 28, 50, 82, and 126) make complete shells in the nucleus. These are similar in concept to the stable electron shells observed for the noble gases.
