Is "one moment... while on the other" correct?

Is the following expression properly written, or does it need some improvement to make the right sense:

One moment she was acting all calm and quiet, while on the other she started being outrageously loud and noisy.

I’m very eager to know the correct usage of "one moment… while on the other" like expression in a sentence. I could be mistakenly using it with the wrong set of words, so please help me rectify this.