The diagram shows a Punnet square. Which of these gives the correct ratio for the offspring predicted by the diagram. The punnet shows BB and BB on top, Bb and Bb on bottom please help

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?

How many valence electrons are in atom of radon?