How do you get the number of Nuetrons on the periodic table?

Answer 1

Look at the Atomic Mass of the element.

Round the atomic mass to the nearest whole number, and subtract the number of protons present in the nucleus (the atomic number).

The nucleus of the atom is made of protons and neutrons, so ideally, one can subtract the number of protons or neutrons to get the number of neutrons or protons.

So, Lithium would have 4 neutrons, Hydrogen would only have a proton, and Iron has 30 neutrons.

Of course, it depends, also, on the isotope of the element, which varies with the number of neutrons. So, carbon-14 would have 8 neutrons and 6 protons, while regular carbon would have 6 protons and 6 neutrons.

Answer 2

To find the number of neutrons in an element, subtract the atomic number from the atomic mass. The atomic number represents the number of protons, and since an element is neutral, the number of protons equals the number of electrons. The atomic mass represents the total number of protons and neutrons in the nucleus.

Answer 3

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