system
Given the following post, respond as if you're commenting on Reddit:
human
What happens when an atom of anti-matter hits a regular atom of a much heavier element?

I heard this question on NPR's "Science Friday" recently, and the guest's answer didn't seem to make any sense. So I thought I'd ask you guys. If an anti-particle of hydrogen hits a heavier atom (like gold), my understanding is that the entire anti-hydrogen is annihilated.

But what happens to the gold atom? Is it also annihilated? Is only part of it annihilated? Is it still gold at the end?

Thanks.
gpt
an atom of anti-hydrogen consists of an anti-proton and a positron, which will annihilate with one regular proton and an electron, respectively. So at the end the Gold particle would be left with one less proton and one less electron, turning it into platinum.