They're only found in the nucleus and play an important role in keeping the atom stable because they carry a negative charge to counteract the proton's positive charge.
Neutrons<span> are found only in the nucleus of the </span>atom<span>, where they play an important </span>role<span> in keeping the </span>atom<span> stable. Since </span>protons<span> are positively charged, there is an incredibly strong repulsive force between all the </span>protons<span> in a nucleus.</span>