For me the word becquerel itself requires some additional brain power points to write. Is it bequerel or becquerel? Do we capitalize it or not? Not when written, but Bq is capitalized, so it's indeed kBq. But then again, is it per second? No, the unit, has per second in it already... And we not need to confuse it with B for byte. I thoroughly enjoyed the article but there's no need to complicate the world further. rps is perfectly fine.