Which of the following statements about the nuclear strong force is not true?
.the nuclear strong force favors binding protons with protons and neutrons with neutrons
.the nuclear strong force is not affected by the charge of the nucleus
. the nuclear strong force is very strong but only over very short distances.
. the nuclear strong force is responsible for the sun’s nuclear fission reactions.

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

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