iron
the protons will be the atomic number, in this case 26. The neutrons depends on which isotope. The most common isotope is iron-56, so that will have 30 neutrons. If the element is written in symbolic notation, the number on the top, minus the number on the bottom is the number of neutrons.
Iron has 26 electrons; the number of neutrons is different for each isotope (number of neutrons = mass number - 26).
The number of neutrons in an atom of a certain element varies from one isotope of that element to another. Iron has stable isotopes Fe-54, Fe-56, Fe-57 and Fe-58 Fe-54 has 28 neutrons, Fe-56 has 30 neutrons, Fe-57 has 31 neutrons and Fe-58 has 32 neutrons.
In a neutral iron (Fe) atom, the number of protons is 26, which is the atomic number of iron. The number of neutrons can vary, but the most common isotope of iron, Fe-56, has 30 neutrons. Since the atom is neutral, it will have an equal number of electrons as the number of protons, so it also has 26 electrons.
The mass number of an iron that has 29 neutrons would be 55. You just take the atomic number of iron, which is 26, and add that to the number of neutrons, which is 29, and you get 55.
26 protons, 26 electrons in iron. Fe-56, the most stable isotope of iron, has 30 neutrons
It varies. Iron is element 26 with a relative atomic mass of 55.85That means that the naturally occurring isotopes must have a range of neutrons.92% of iron atoms have 30 neutrons, 8% have 28 neutrons; 2% have 31 neutrons and there is a small percentage
The atomic number of iron is 26 whereas the mass number of it is 56. Therefore it has 26 electrons and 30 neutrons (56-26).
In iron, there are 30 neutrons.
Iron-59 has 26 protons and 26 neutrons.
iron
the protons will be the atomic number, in this case 26. The neutrons depends on which isotope. The most common isotope is iron-56, so that will have 30 neutrons. If the element is written in symbolic notation, the number on the top, minus the number on the bottom is the number of neutrons.
The type of element an atom belongs to is determined by the number of protons in the nucleus. Iron, for example, always has 26 protons. The number of neutrons can vary. In naturally occurring iron there are four stable isotopes iron-54 (5.82 percent) 28 neutrons iron-56 (91.66 percent) 30 neutrons iron-57 (2.19 percent) 31 neutrons iron-58 (0.33 percent) 32 neutrons When doing calculations it is assumed the iron is close to this mixture and so the atomic mass will be calculated as the average weight of an iron atom.
How many neutrons, not how much newtrons. Iron's atomic number is 26, so it has 26 protons; its atomic mass is approximately 56, which equals the number of protons and neutrons. 56 - 26 = 20 neutrons. While there are isotopes of iron with more or fewer neutrons, this is likely the answer you're expected to provide. If not, see Wikipedia "isotopes of iron".
Number of protons + neutrons = mass number 26 protons + 31 neutrons 57
Iron has 26 electrons; the number of neutrons is different for each isotope (number of neutrons = mass number - 26).