প্রশমিত কণা
(1) An elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
(2) An elementary particle with 0 charge and mass about equal to a proton
(3) Enters into the structure of the atomic nucleus
(1) If conditions are right, protons and electrons then fuse into neutrons , creating a neutron star.
(2) An alpha particle consists of two protons and two neutrons ; it is the nucleus of a helium atom.
(3) Even the protons and neutrons in the atomic nucleus are believed to made of even smaller particles called quarks.
(4) The mass number gives you the total number of protons and neutrons in the nucleus of that element.
(5) The result would be a star made entirely of neutrons, and these could be packed together as closely as the protons and neutrons in an atomic nucleus.
neutron