Malakai Maher Chemistry Crossword

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Across
  1. 5. Neutrally charged particle in the nucleus
  2. 8. the 74th element with the chemical symbol W
  3. 11. the period of elements starting with actinium in the metal groups
  4. 14. the isotope of hydrogen with 2 neutrons
  5. 15. the alloy of gold and silver
Down
  1. 1. Positively charged particle in the nucleus
  2. 2. subatomic particle in lepton class with 200 times greater mass than an electron
  3. 3. negatively charged particle in the nucleus
  4. 4. the element with the shortest half-life, and is the most radioactive element
  5. 6. a charged particle
  6. 7. the alloy of aluminum, nickel and cobalt commonly used in magnets
  7. 9. the anti matter of electons
  8. 10. the isotope of hydrogen with 0 neutrons
  9. 12. the isotope of hydrogen with 1 neutron
  10. 13. the symbol for wavelength from the Greek alphabet