Will the 17 wheels from a 2004 Chrysler Pacifica fit 1999 Concorde?

No, it's highly unlikely that the wheels from a 2004 Chrysler Pacifica will fit a 1999 Chrysler Concorde. While both are Chrysler vehicles, they have different chassis and wheel specifications. The bolt pattern (number of lug nuts and their spacing), wheel diameter, and offset are likely different. Using incompatible wheels can be dangerous. You need to check the specifications (bolt pattern, wheel diameter, offset) for both vehicles before attempting to swap wheels.