Leyin igba ti awon orile-ede United Kingdom satako si Naijiria, won si so pe won ma se idaduro si awon iranlowo ti won un fun Naijiria.. 
thermal neutrons are produced that Collide with the nuclei of nitrogen-14, forming carbon-14 and a proton.isosísọch of  carbon are Atomic nuclei that contain six protons Plus a number of neutrons (varying from 2 to 16).. 