It varies. Iron is element 26 with a relative Atomic Mass of 55.85
That 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 <1% have 32 neutrons
There are 30 neutrons, 26 protons, and 26 electrons in a neutral atom of iron. Provided it is not an isotope.
Number of neutrons = Atomic mass of an isotope - atomic number of the isotope
The atomic number of iron is 26;
There are 26 electrons in iron. There also 26 protons in iron. There are 30 neutrons in the element iron.
Iron's standard atomic weight is 56 and it has 26 protons. It thus has 56-26 = 30 neutrons. There are other isotopes with differing numbers.
The most stable isotope of iron contains 30 neutrons.
30 neutrons.
30, for its most stable isotope
Iron (Fe) has 30 neutrons.
The isotope iron-54 has 28 neutrons.
Iron-56 has 26 protons, 30 neutrons, and 26electrons.
30 neutrons in the most stable isotope of iron (Fe-56).
26 protons, 26 electrons in iron. Fe-56, the most stable isotope of iron, has 30 neutrons
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.
The isotope iron-54 has 28 neutrons.
Iron-56 has 26 protons, 30 neutrons, and 26electrons.
In the most abundant isotope of iron, there are 26 protons and 26 neutrons.
91.72% of all iron has 30 neutrons. But there are also stable forms of iron with 31 and 32 neutrons.
It has 26 protons and 30 neutrons
30 neutrons in the most stable isotope of iron (Fe-56).
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).
26 protons, 26 electrons in iron. Fe-56, the most stable isotope of iron, has 30 neutrons
The element comes with 30 neutrons is iron. It also has 26 protons.
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".
26 protons 26 electrons and 30 neutrons
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.