1) If there is no God, how was everything created?
It's a presumption to assume that everything was created. I don't mean to say that it isn't the case, but I will not accept creation without proof. And quite honestly, a feat of extraordinary ability doesn't classify one as a god, just as advanced.
Let's say there is a 'God'... How do we judge his methods for 'Creation'? Moreover, how do we assign a status to him when we can't even comprehend the necessity for creating a universe? My point here being, we cannot call him "The creator of all" when we know nothing of before, or how he is. Religion relies on faith, not on thought.
If you think about religious beliefs long enough, you'll notice most of it doesn't make a lick of sense.
2) What reason is there to do right?
What reason is there for getting up in the morning? What reason is there for sleeping at night? Eating? Drinking? Moving???
The reason to do right is for survival. Your next question is a little less vague, but down to the point would be... doing the 'wrong' thing would result a personal loss for you.
3) What defines right and wrong? I believe moral standards were sort of developed using both a combination of society's views and religion...
Right and wrong are currently defined by societal views, indeed. Religion plays some part in it, but that's being removed slowly as we move through the generations. A few decades ago, atheists were considered communists, now we're being respected for our views.
If you wanna get into the nitty gritty, I define right and wrong by what would benefit me the most, and cause me the least grief. It's all done through survival instincts, and while that may upset some of the people who try to put a philosophical spin on right and wrong... it's true. We do the right thing to survive, we don't do the wrong thing to survive.
Even religious people follow this code, they just don't realize it because they cover it up with a 'higher' purpose. "I do good so I can have eternity in heaven". Which is the basic premise of all survival instincts... do the best you can to maximize profits and minimize losses. If you go to hell, you'll be in pain for all eternity. If you go to heaven, you'll be in pleasure for all eternity. It's easy to see the choice there.
In the case of an atheist, we don't have such broad examples to follow so we basically have to run with the punches and make rational decisions on a daily basis. In our case, we have to think about what we want, where we want to be, and how we want to get there. This is survival at its finest... And most atheists I know want to survive because we accept that this is all we have and we have to do the best we can with it.
A. the universe is expanding.
B. the universe' expansion is slowing.
C. the universe will eventually start to contract.
D. eventually the totality of the universe will be concentrated into a singular unit.
E. Another big bang occurs.
F. rinse, repeat
You're actually incorrect. There is no proof that Hydrogen atoms are being 'created', so therefore... one day billions of trillions of years from now... there will be no more hydrogen atoms. When the Hydrogen goes, there'll be no more light and therefore no more life. The universe will cease to harbor any life one day in the far future.
The Earth will probably be long gone by then, however

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