There are dozens more isotopes that you have not mentioned so ...
You’re right.
There are others.
Name one that’s got a half-life longer than 50 years.
No. I will not play fetch for you, troll.
Come back and play this game after you jerks have cleaned up 3Mile Island, Fukushima, and Chernobyl.
When it’s clean and safe enough for ordinary people who aren’t as aggressively hidebound as you, then get back to me about which particular isotope is so friggen important to you.