Here's why:
* Missing Verb: You need a verb to complete the sentence. "Gone" isn't a verb on its own.
* Incomplete Thought: It's unclear what you want to say.
Here are some ways to correct the sentence depending on what you meant:
* Has the bell gone off? (Meaning: Did the bell ring?)
* Has the bell gone quiet? (Meaning: Is the bell no longer ringing?)
* Has the bell gone missing? (Meaning: Can't find the bell)
Please clarify your thought, and I can help you write a complete and correct sentence!