Number of Neutrons = Mass number - Number of Protons
neutrons
IsotopesThe number of protons in the nucleus of an atom determines the element. The number of neutrons can vary. If two atoms of the same element have a different number of neutrons in their nuclei, they are isotopes of that element.
protons and neutrons in its nucleus. The number of protons determines the element, while the number of neutrons can vary to create different isotopes of that element.
No. You have to change the number of protrons.(Changing the number of neutrons changes the isotope of the element, but it is still the same element. However, changing the number of neutrons will often result in instability, causing a radioactive decay sequence, which often results in a change in element.)
To find the number of neutrons in an element, subtract the atomic number (number of protons) from the mass number (sum of protons and neutrons). Neutrons do not carry a charge and help stabilize the nucleus of an atom.
The average number of neutrons that a specific element has is equivilent to the element's atomic mass minus the that elements atomic number. For example Helium has 2 neutrons because its atomic mass (4) minus the atomic number (2) is 2.
Number of protons + Number of neutrons = Mass number(number of nucleons)
No, the number of neutrons vary, but protons and electrons are static among an element.
Radium has 138 neutrons.
To determine the number of neutrons, subtract the atomic number from the mass number. In this case, 208 - 83 = 125 neutrons.
To find the number of neutrons in an element, subtract the atomic number (number of protons) from the atomic mass number (rounded mass of the element). The atomic number can be determined from the element's position on the periodic table.
Isotopes of the same element have the same number of protons and electrons, but varied numbers of neutrons.