Series of questions.?

Not even Stephen Hawking has the complete answers to these questions.

Dark matter and energy account for differential rotation in Galaxies. Heavy elements are created from Type 2 supernova. Protons are theoretically unstable I think but proton decay has never been observed. Gravity is an attractive force between two objects that is inversely proportional to their distances. Neutrinos have mass(very small)

1 and 2 have a lot of deep theoretical stuff that I'm not too informed about so I'll skip.

3.) H to Fe are produced within stars, but Fe so as far as the star can go, but when supernovas occur, Fe and the other elements are able to produce the heavier elements of the periodic table.

4.) Depends on who you talk to. Mostly quantum physicists.

5.) Yes, if they weren't we'd be in some serious trouble.

6.) A force that attracts atoms together.

7.) Yes, but incredibly small masses. Everything has mass to may knowledge except for photons (light particles).

Stop being lazy and do your own homework!

www.universaltheory.org/dark_matter.htm

superstringtheory.com/cosmo/cosmo5.html

www.stanford.edu/dept/news/pr/2005/pr-aaas_susskind-021605.html

news-service.stanford.edu/news/2005/march2/aaas_susskindsr-030205.html

www.sns.ias.edu/~witten/papers/string.pdf

www.physorg.com/news3101.html

www.darkmatterphysics.com