Nickel, and rare isotopes of Iron
Number of protons + neutrons = mass number 26 protons + 31 neutrons 57
The isotope with 15 protons, 16 neutrons, and 15 electrons is oxygen-31.
Gallium-64 has 31 protons, 33 neutrons, and 31 electrons.
There are a variety of isotopes that have 30 neutrons. It isn't the number of neutrons that determines an element, but the number of protons. Electrons generally balance the number of protons.
The isotope 56Mn has 25 protons, 25 electrons, 31 neutrons and a mass number of 56.
Number of protons + neutrons = mass number 26 protons + 31 neutrons 57
The isotope with 15 protons, 16 neutrons, and 15 electrons is oxygen-31.
Rare isotopes of Iron (57Fe) and Nickel (59Ni) have 31 neutrons. No other naturally-occurring elements have 31 neutrons. The intermediate element, 58Co (cobalt) has also been synthesized.
Gallium-64 has 31 protons, 33 neutrons, and 31 electrons.
There are a variety of isotopes that have 30 neutrons. It isn't the number of neutrons that determines an element, but the number of protons. Electrons generally balance the number of protons.
26 It has 26 protons, 26 electrons and (mostly) 30 neutrons, but 28, 31 and 32 neutrons are natural isotopes of iron as well (though less than 10%).
The isotope 56Mn has 25 protons, 25 electrons, 31 neutrons and a mass number of 56.
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
Nickel has 28 protons and electrons. The number of neutrons in nickel can vary, as it has multiple isotopes. Nickel has 4 electron shells, with electrons distributed as follows: 2 in the first shell, 8 in the second shell, 16 in the third shell, and 2 in the fourth shell.
The mass of an atom is primarily determined by the protons and neutrons it contains since electrons have negligible mass. With 38 neutrons and an atomic number of 31 (which corresponds to the number of protons), this atom is likely a neutral atom of gallium. The approximate mass of this neutral atom can be calculated using the atomic mass of gallium (around 69.7 g/mol).
I am understanding you to mean an iron-57 ion with a charge of 3+.The atomic number of Fe is 26, which means that all Fe atoms or ions have 26 protons in their nuclei.In a neutral Fe atom, the number of electrons would be the same as the number of protons, which is 26. The charge on the Fe ion is 3+, which means the Fe atom has given up 3 electrons. So the number of electrons in an Fe3+ ion is 26-3, which is 23.The mass number of iron-57 = 57. The mass number is the sum of protons and neutrons in the atomic nuclei of iron-57 atoms. We know the number of protons is 26. The number of neutrons = mass number - the number of protons, which is 57-26 = 31 neutrons.To summarize:The number of protons in all Fe atoms is 26.The number of electrons in an any Fe3+ ion is 23.The number of neutrons in an iron-57 atom is 31.
Iron-57 is a stable isotope of iron, meaning it does not undergo radioactive decay. It has 26 protons and 31 neutrons, giving it a mass number of 57. Iron-57 is commonly used in Mössbauer spectroscopy to study the properties of iron-containing compounds.