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?
Who are the scientists who contributed to the development of the model of the atom? J.J. Thomson, chemist, discovered the negative particle (electron) in the atom. Goldstein, scientist, discovered the positively charged particle (electron) in the atom.