This is electron capture, in which a nucleus absorbs an electron.

Dr. Zamenhof said that tests have shown that the boron-10 nuclei act as magnets for neutrons and absorb them quickly.

Nuclear resonance fluorescence (NRF) is a nuclear process in which a nucleus absorbs and emits high-energy photons called gamma rays.

With some exceptions, nuclei lighter than iron release energy when they fuse, while heavier nuclei absorb energy; this is because iron has the largest binding energy.

Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a magnetic field absorb and re-emit electromagnetic radiation.

In a fission chain reaction, a fissile nucleus absorbs a neutron and fissions (splits) spontaneously, releasing additional neutrons.

When the nucleus of uranium-235 absorbs a neutron, it undergoes nuclear fission, releasing energy and, on average, 2.5 neutrons.

When a large fissile atomic nucleus such as uranium-235 or plutonium-239 absorbs a neutron, it may undergo nuclear fission.

If the precession frequence is the same as the frequence of the applied radio wave, the nuclei will absorb energy from the radio waves.

The nuclei of several hafnium isotopes can each absorb multiple neutrons.