In the formula xf2, the element represented by x can be classified as a(1) group 1 metal(2) group 2 metal(3) group 1 nonmetal(4) group 2 nonmetal

Easy definition for atom and atomic mass

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

Why is nh3 classified as a polar molecule