It don`t say Adam and eve were created on the sixth day, of course if you want to add a little I guess that is ok, all of the scholars do.
Correct, Adam and Eve are not specifically named in chapter 1. But they are the focused subject of chapter 2-3. In the following chapters of Genesis it is confirmed they were the first pair of humans.
As I mentioned in previously, we have a telescopic view of Creation in chapter one. A microscopic view in chapter 2.