[adwn]

> I suspect that if you exposed just about anything to 100,000 kelvin it ceased to look like any kind of matter we know anything about.

1e5 K? You're missing a couple orders of magnitude, there.

The hottest parts of the Sun's surface go up to 20 million Kelvin, and that doesn't "cease to look like any kind of matter we know anything about".

[msandford]

Yes, but there is SOME temperature at which heating things up does start to cause things to act weirdly. You know, like in a fusion reactor. That definitely changes the radioactivity of certain elements.