Is propane an alkene. descrive the test for alkenes. give the colour change in the test

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.

What will most likely happen when two bromine atoms bond together?

How is the atomic number of a nucleus changed by alpha decay