How many stable isotopes does copper have?

1 Answer
Aug 19, 2015

Copper has two stable isotopes.


They are #""^63"Cu"# and #""^65"Cu"#.

In addition there are 27 radioactive isotopes.

There is much interest in using #""^64"Cu"# in nuclear medicine.

It decomposes by both β-decay and positron emission, with a half-life of 12.7 h, so it would be ideal for use in PET scanning.