How many scallops in 1 kg?

Excuse me, I was wondering if you could clarify something for me. The paragraph mentions "How many scallops in 1 kg?" and I'm trying to understand the context a bit better. Are we talking about a specific type of scallop here? Is it a common inquiry in the culinary or seafood industry? And furthermore, would the answer vary depending on the size of the scallops or is there a standard measurement that's typically used? I'm just curious to know more about this question and its implications. Thank you for your time.