Nuclear Fission Crossword Puzzle

QUESTIONS LIST:

• nucleus : center of a cell
• neutron : subatomic particle with no charge
• nuclear fusion : light elements form heavier elements and release energy
• nuclear fission : the splitting of a large nucleus to produce two smaller ones
• alpha particle : two protons and two neutrons bound together to make a helium-4 nucleus
• gamma radiation : electromagnetic radiation arising from the radioactive decay of atomic nuclei
• mass number : total number of protons and neutrons in an atomic nucleus
• proton : subatomic particle with positive electric charge
• radioactivity : emission of energy and particles by unstable atomic nuclei
• isotope : an atom of the same element with different numbers of neutrons
• chain reaction : sequence of reactions where a reactive product causes additional reactions
• beta particle : high energy high electron emitted by radioactive decay of substances
• half life : the concentration of a substance to fall off half of its original value
• atomic number : same number of protons