How many protons neutrons and electrons does Fe-56 have?

Answer 1

It doesn't matter if it's 56Fe or 49Fe; the number of protons in an atom of iron will remain constant. Why? Because if there was one more electron, it wouldn't be Fe anymore: it'd be cobalt (Co). The number of protons determines the element, the only thing that can change regarding the nuclear makeup of an atom without changing the element is the number of electrons. The 56 stands for the atomic weight of that particular isotope of iron. If each neutron and each proton weigh 1 amu each, then the atomic weight minus the number of protons will give you the number of neutrons.

Answer 2

There are 26 protons, 30 neutrons and 10 electrons.

Answer 3

26 protons, 26 electrons, and 30 neutrons.

Answer 4

Iron-56 (Fe-56) has 26 protons, 30 neutrons, and 26 electrons. The number of protons determines the element, while the sum of protons and neutrons gives the Atomic Mass.