There are 104 operating nuclear reactors in the US. See www.nrc.gov for maps and lists
Saying nuclear energy is like saying Norwegian furniture. Nuclear power/energy is used everywhere, in 2009 20% of all electricity in the US was nuclear origin.
Nuclear energy is used most in the US for electricity generation. The states with the highest nuclear energy generation capacity include Illinois, Pennsylvania, and South Carolina.
In the US, about 20 percent of electricity
19 percent of electricity
The nuclear fusion is not used now as a source of energy; probable possible in a far future.
Magnesium is not used in the nuclear energy.
There are 104 operating nuclear reactors in the US and at least 400 world wide.
The only form of nuclear energy currently used in the US, or anywhere in the world for that matter, to produce electricity is nuclear fission. There are ongoing experiments to attempt to use nuclear fusion, but the technological problems with that have not paid off yet.
What is traditionally called "nuclear energy" is certainly NOT easy to use - it requires some pretty advanced technology. However, when we let the Sun warm us, we are using the Sun's nuclear energy.
Nuclear energy is found everywhere in the world and is used for powering many things, like homes, and businesses. Mostly it is found in the eastern part of the US.
The USA started using nuclear energy in 1951
No. About 20% of the US electrical energy supply is from nuclear power.