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The isotope with the longest half life (Rf-267) has the mass number 267.
Each isotope has a specific mass number.

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How many neutrons are rutherfordium?

For each isotope of Rf the number of neutrons is different.Number of neutrons = Mass number of an Rf isotope - 104


What is rutherfordiums atomic mass?

261 amu. ------- The most stable isotopes of rutherfordium are: - atomic mass of 265Rf: 265,116 700 - atomic mass of 267Rf: 267,121 530 Masses after IUPAC recommendations, 2009.


How many neutron does rutherfordium have?

For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 104


What is the number of neutrons in rutherfordium?

The number of neutrons is different for each isotope. Number of neutrons = Atomic mass of an isotope - 104


How many neutron does Rutherfordium?

For each isotope of Rf the number of neutrons is different.Number of neutrons = Mass number of an Rf isotope - 104


What is the mass of rutherfordium?

The most stable isotopes of rutherfordium are: - atomic mass of 265Rf: 265,116 700 - atomic mass of 267Rf: 267,121 530 Masses after IUPAC recommendations, 2009.


How much is rutherfordium from the periodic table?

The atomic number of rutherfordium is 104.


How many protons neutrons and electrons are in a rutherfordium atom?

It contains 104 electrons/protons and 159 neutrons.


If an atom has 43 electrons and 56 neutrons and 43 protons what is its approximate atomic mass?

Atomic mass of an element is measured in atomic mass units (amu), and is usually only slightly higher than its atomic mass number (except for elements having many different isotopes). The mass of a neutron is 1.00866 amu and the mass of a proton is 1.00728 amu. The mass of electrons is so insignificant that they are ignored. The atomic mass of an atom with 56 neutrons and 43 protons is (56 x 1.00866 amu) + (43 x 1.00728 amu) = ~99.8 amu.


What is the number of atoms in 359 grams of rutherfordium?

359 g Rf = 8,093.1023 rutherfordium atoms


What is the formula for rutherfordium?

Rutherfordium is an element. Its symbol is Rf. It was discovered in 1964. The element number is 104.


What is the atomic mass for rutherfordium?

The most stable isotope is rutherfordiun 267; for other isotopes see at: http://en.wikipedia.org/wiki/Rutherfordium