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Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
Check
Across: 1. Heavy metal used in fuels 4. Unstable isotopes emit alpha, beta, or gamma because of this. 6. Number of protons, determining the element 8. Total number of protons and neutrons 9. A deficiency in electrons gives an atom this charge. 10. A charged atom 11. This nucleus might change. 12. This metal is made in reactors 13. This charge is because an atom has too many electrons. 14. I am tiny and carry negative charge. I am an...
Down: 2. Particle that carries zero charge 3. An electromagnetic radiation coming from the nucleus. 5. This is done at Sellafield using waste fuel. 7. Neither positive nor negative 12. Charged particle in the nucleus.
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