Match the following descriptions to their proper particle.
alpha beta gamma delta neutron fission fusion Radon gas is dangerous because it emits this heavy particle which is damaging to the human skin.
alpha beta gamma delta neutron fission fusion Hydrogen and helium combine together in the sun to form a new, heavier, nucleus by this process.
alpha beta gamma delta neutron fission fusion This type of radioactive particle or ray that is negatively charged.
alpha beta gamma delta neutron fission fusion This type of radioactive particle or ray that penetrates furthest into the human skin.