What is the symbol of an element give answer​

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

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 natural processes produce large quantities of co2