Rutherfordium ( /ˌrʌðərˈfɔrdiəm/ rudh-ər-for-dee-əm) is a chemical element with symbol Rf andatomic number 104, named in honor of New Zealand physicist Ernest Rutherford. It is a synthetic element (an element that can be created in a laboratory but is not found in nature) and radioactive; the most stable known isotope, 267Rf, has a half-life of approximately 1.3 hours.
In the Periodic Table of the elements, it is a d-block element and the first of the transactinide elements. It is a member of the 7th period and belongs to the group 4 elements. Chemistry experiments have confirmed that rutherfordium behaves as the heavier homologue to hafnium in group 4. The chemical properties of rutherfordium are characterized only partly. They compare well with the chemistry of the other group 4 elements, even though some calculations had indicated that the element might show significantly different properties due to relativistic effects.
In the 1960s, small amounts of rutherfordium were produced in laboratories in the former Soviet Union and in California. The priority of the discovery and therefore the naming of the element was disputed between Soviet and American scientists, and it was not until 1997 that International Union of Pure and Applied Chemistry (IUPAC) established rutherfordium as the official name for the element.
RF usually means radio frequency
Radio Frequency
radio frequency
RF = "radio frequency"
Se stands for selenium on the Periodic Table.
There is no J in the table
11 is the atomic number for the element sodium in the periodic table.
there is no such element
Promethium
There is no R in the periodic table. There is Rb, Rf, Re, and Rn.
Rutherfordium
N stands for Nitrogen on the periodic table.
Be stands for Beryllium in the periodic table of elements. It is a light and strong metal that is commonly used in aerospace and defense industries due to its high stiffness-to-weight ratio.
There is no symbol KM in the periodic table.
"Br" stands for Bromine in the periodic table.
Da isnt an element on the periodic table. Sorry!
Se stands for selenium on the Periodic Table.
iodine
Beryilium
there is no such element
iodine