Noble gases 1. behave as metals when they react. 2. are also transition elements. 3. do not react under normal conditions. 4. behave as metalloids when they react.

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 is the main reason why some developing countries fear the increase the free trade policies around the world?

The biosphere of the earth is made up of what compound? organic or inorganic?