Atomic Structure and Nuclear Physics

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Across
  1. 3. Protons have a _________ charge
  2. 4. What sub-atomic particles are arranged in shells?
  3. 10. In electricity production steam turns a ________ which generates electricity
  4. 11. Electrons have a _________ charge
  5. 12. Protons and Neutrons are found in this part of the atom
  6. 13. Coal boils water and it turns to _______
  7. 15. This nuclear disaster occurred in 1986 in Russia
  8. 16. This type of radiation can be stopped by aluminium
Down
  1. 1. When an alkali metal reacts an electron is ______
  2. 2. What chemical is used to test for carbon dioxide?
  3. 5. What gas is released when coal reacts with oxygen?
  4. 6. A radioactive atom can decay only ________
  5. 7. Limewater goes from colourless to ______ when CO2 is present.
  6. 8. How many electrons would be in the outer shell of an atom with 9 electrons in total.
  7. 9. This type of radiation can be stopped by lead (think hulk)
  8. 14. This type of radiation can be stopped by paper