Chemistry 1

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Across
  1. 1. The number of protons in the nucleus of an atom
  2. 3. An element with physical and chemical properties of both metals and nonmetals
  3. 6. The prefix meaning "4"
  4. 8. The gaining of electrons Hint: GER
  5. 9. The types of rooms found on the right side of the table
  6. 10. An ion with a negative charge
  7. 12. Where most of the mass of an atom is
  8. 17. He did the gold foil experiment
  9. 20. Elements that contain the same number of protons but different numbers of electrons
  10. 21. A substance with a low pH
  11. 22. Types of elements found on the left side of the periodic table
  12. 24. The smallest part of the atom
Down
  1. 2. A compound that is made of two or more nonmetals
  2. 4. A compound that is made of a metal & a nonmetal
  3. 5. The arrangement of elements that organizes them by property and atomic number Hint: it is our main reference for elements
  4. 7. Color of a sodium flame
  5. 11. The temperature, in Celsius, at which water boils Hint: spell it out
  6. 13. What is emitted when an electron falls from one energy level to another
  7. 14. These should always be worn to protect our eyes in a lab
  8. 15. An ion with a positive charge
  9. 16. Type of room that consists of group 1 & 2
  10. 18. The loss of electrons Hint: LEO
  11. 19. Pure substance that cannot be broken down into smaller substances
  12. 23. Form of matter made with electrons, neutrons, and protons