The Atomic Mass of Carbon is 12.0107 The atomic mass of Gold is 196.96657 So an atom of Gold is about 16 times heavier than an atom of Carbon.
The atomic mass of Carbon is 12.0107 The atomic mass of Gold is 196.96657 So an atom of Gold is about 16 times heavier than an atom of Carbon.
The atomic weight/mass of Lead is 207.19 --- --- --- The atomic weight/mass of Gold is 196.96655 --- --- --- --- --- --- Therefor Lead has more mass.
the nucleus contains less than half the mass of the atom
In Rutherford's gold foil experiment, some of the Alpha particles aimed at gold atoms bounced back, suggesting that a solid mass was at the center of the atom.They suggested that most of the mass of the atom is concentrated at the center and the center is positively charged.
The atomic mass unit (amu) is a unit of mass used to express the average mass of an atom or molecule. To calculate the atomic mass unit of gold (Au), you would look at the atomic mass of gold on the periodic table, which is approximately 197 amu.
the lead atom is heavier, but it also bigger. therefore the density of lead is less than that of gold
Gold's atomic number is 79 and its atomic mass is 197 (on avarage) 197-79=118 neutrons.
The nucleus of the atom of the most common isotope of gold has 97 protons and 100 neutrons
The atomic mass of Aluminum is 27.Added:The first answer is correct in itself, but on the wrong question: not concerning Au but AlAu = Gold = atom number 79, mass 197.0 a.m.u.Al = Aluminum = atom number 13, mass 26.98 a.m.u.
The radioactive isotope 198Au has the mass number 198.
That the mass of an atom is mostly located in a small nucleus.