Nickel, and rare isotopes of Iron
Titanium
Iron 57 is a natural stable isotope of iron (2,2 %): 26 protons and electrons, 31 neutrons.
Number of protons + neutrons = mass number 26 protons + 31 neutrons 57
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 element is phosphorus and the isotope is 15P35
The isotope 56Mn has 25 protons, 25 electrons, 31 neutrons and a mass number of 56.
Iron 57 is a natural stable isotope of iron (2,2 %): 26 protons and electrons, 31 neutrons.
Number of protons + neutrons = mass number 26 protons + 31 neutrons 57
From the periodic table, the atomic number of iron (Fe) is 26. This means that iron atoms have 26 protons in their nuclei. Mass number is the number of protons and neutrons in the nucleus of an isotope of an element. So, for your example of 31 neutrons, the sum of the number of protons (26) and neutrons (31) is 57. So the mass number of this iron atom is 57.
The number of neutrons varies as there are isotopes to every element, meaning a different number of neutrons. The most common isotopes of nickel have 30 or 32 neutrons. All nickel atoms have 28 protons, and (if neutral) 28 electrons. Nickel ions will have fewer electrons depending on the charge. Neutrally charged nickel has 28 protons, 28 electrons and 31 neutrons
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%).
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.
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 element is phosphorus and the isotope is 15P35
The isotope 56Mn has 25 protons, 25 electrons, 31 neutrons and a mass number of 56.
31 protons, 32 neutrons and 28 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.
Phosphorous Atomic Number: 15 Atomic Weight: 31 15 Protons 16 Neutrons 15 Electrons