Rutherfordium is a synthetic element with the symbol Rf and atomic number 104. It was first created in 1964 by a team of scientists at the Joint Institute for Nuclear Research in Dubna, Russia. This element is named after the famous physicist Ernest Rutherford, who is known for his work in nuclear physics. Rutherfordium is classified as a transition metal and is part of the d-block of the periodic table. It is highly radioactive and has no stable isotopes, with the most stable isotope having a half-life of about 1.3 days. Due to its short half-life, rutherfordium has no significant commercial applications and is primarily used for research purposes.