If you are not the one who inserted the line, it is recommended to look for the insertion documentation record or device placement information, including xray results for tip confirmation to determine what kind of catheter it is.
Rutherford's gold foil experiment provided evidence that There is a dense, positively charged mass in the center of an atom Who provided evidence for the existence of a nucleus in an atom?
Rutherford discovered protons and the nucleus. He showed that atoms have (+) particles in. the center, and are mostly empty space. He called these (+) particles protons. He called the center. of atoms the nucleus.