Its bonding properties change. In this particular case with so many electrons gone it is going to become strongly electronegative. Like a super-duper Oxygen or Florine. It will be pulling electrons away from everything within reach.
Ok, I’m staying up with you so far (and removing a LOT of dust that settled on the high school chemistry information!), but I keep getting hung up on the atomic weight. Is the atomic weight based solely on the nucleus? Do the atoms have zero weight or is it too negligible to make any difference?
BTW, thanks for your patience in helping me understand this stuff. I really enjoy learning new things, no matter how many times I have learned it before!!