Define metallic bonds

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

What three natural resources are found in the great lakes region

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.