Predict the crystal ionic radius for antimony, Sb, observing the trend in values for the crystal ionic radii of the other elements belonging to the same group. p .340, As .580, Sb

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

A1 a 2 a 3 ooh lol i think that's it