2.) Jaime tests the physical and chemical properties of several elements in the laboratory. He finds that two of the elements have very similar properties. What can he conclude about these elements?
A.) They have the same number of protons.
B.) They have the same number of neutrons.
C.) They are located in the same row of the periodic table.
D.) They are located in the same column of the periodic table.

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.

Centrapedial force is the answer

Biased means unfair but that's all ik