Which radiation is positive and has two protons and two neutrons: alpha, beta, gamma or neutron?
دو پروٹون و دو نیوٹران والی مثبت اشعاع الفا، بیٹا، گاما یا نیوٹران؟
Solution & explanation
Alpha particles are helium-4 nuclei, charge +2e.
Independent study answer. Original textbook ↗ · English-medium printed page 183–184.