الكوارتز التعدين، كمحصلة
الكوارتز التعدين، كمحصلة . Atomic Structure and Radioactivity HowStuffWorks. Alpha decay: A nucleus ejects two protons and two neutrons bound together, known as an alpha particle. Beta decay: A neutron becomes a proton, an electron and an antineutrino.The ejected electron is a beta particle.; Spontaneous fission: A nucleus ...