Science Vocab Words

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Across
  1. 5. Positively charged and resides in the nucleus of an atom
  2. 7. each of two or more forms of the same element that contain equal numbers of protons
  3. 8. Rows of the periodic table of elements
  4. 9. negatively charged and resides in the electronic cloud
  5. 10. A group of atoms, usually but not always representing more than one element, joined by chemical bonds
  6. 13. A phenomenon whereby certain isotopes known as radioisotopes are subject to a form of decay brought about by the emission of high-energy particles
  7. 15. each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances
  8. 16. The last element on the periodic table
  9. 17. The first name of the person who made the periodic table
  10. 19. symbol The number of protons in the nucleus of an atom
Down
  1. 1. The number of protons in the nucleus of an atom
  2. 2. The first element on the periodic table
  3. 3. A pattern of probabilities regarding the regions that an electron can occupy within an atom in a particular energy state
  4. 4. A substance made of two or more elements that have bonded chemically
  5. 5. Rows of the periodic table of elements
  6. 6. Neutral and resides in the nucleus of an atom
  7. 11. Columns on the periodic table of elements
  8. 12. The last name of the person who made the periodic table
  9. 14. an atom or molecule with a net electric charge
  10. 18. A group of atoms, usually but not always representing more than one element, joined by chemical bonds