Your lack of imagination is your defeat

[Cyberman]

You know the old saying.........He who laughs last, laughs best ..........

Laughs longest. More correctly, "Laugh on laugh on my friend. He laugheth best that laugheth to the end". Note to the audience that Rik keaped away from my commentary on his arrogant condescension like the good trained dolphin that he is, and splashed down here:

I would like if anyone of you explain to me why there is radioactivity in some matter.
After millions or maybe billion years that the universe exist radioactivity should have gone ages ago
because radioactivity doesn't last for that long.
But it is there.
From here come natural to think that creation goes on and on and a creator is there.
So how atheists reconcile all this?

Unstable elements such as Uranium-238 have half-lives of billions of years - U-238 itself has a h/l of 4.7 billion years. These decay into further radioactive isotopes, such as Thorium-230, with comparatively long halflives. It's an ongoing process of radioactive decay, not ongoing creation ex nihilo - so no creator required.

I give you food for though now.
Let us see if you can come out with anything that make sense for once.