If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Identifying the type of decay


In any sample of lead-214, half of it decays in less than half hour! This makes it the most radioactive isotope of lead.
It decays into bismuth-214, then pollonium-214, and so on.
Identify each decay involved in this process.
Choose 1 answer: