There are 29 isotopes of copper. 63Cu and 65Cu are stable, with 63Cu comprising approximately 69% of naturally occurring copper; they both have a spin of 3⁄2. The other isotopes are radioactive, with the most stable being 67Cu with a half-life of 61.83 hours. Seven metastable isotopes have been characterized, with 68mCu the longest-lived with a half-life of 3.8 minutes. Isotopes with a mass number above 64 decay by β−, whereas those with a mass number below 64 decay by β+. 64Cu, which has a half-life of 12.7 hours, decays both ways.
There are 29 isotopes of copper . 63Cu and 65Cu are stable , with 63Cu comprising approximately 69 % of naturally occurring copper ; they both have a spin of 3⁄2 . The other isotopes are radioactive , with the most stable being 67Cu with a half - life of 61.83 hours . Seven metastable isotopes have been characterized , with 68mCu the longest - lived with a half - life of 3.8 minutes . Isotopes with a mass number above 64 decay by β− , whereas those with a mass number below 64 decay by β+ . 64Cu , which has a half - life of 12.7 hours , decays both ways .
What are the two stable isotopes of cooper?
What are the two stable isotopes of cooper ?
63Cu and 65Cu
63Cu and 65Cu