Science Vocab

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Across
  1. 5. Two or more covalently bonded atoms
  2. 7. Columns going up and down the periodic table
  3. 8. Move toward one another
  4. 11. When the nucleus of the atoms attract the outer electrons of the other atom
  5. 12. The average mass of the atoms in an element
  6. 15. In regions surrounding nucleus; negative charge
  7. 17. The area surrounding the nucleus where the electron is most likely to be
  8. 18. Atoms of the same element with different number of neutrons
  9. 20. The bond when electrons from both atoms are shared by both atoms
  10. 21. the region surrounding the nucleus
Down
  1. 1. Rows going across the periodic table
  2. 2. The number of protons in the nucleus of the atoms
  3. 3. Electrons in the outermost energy level
  4. 4. In nucleus of the atom; no charge
  5. 6. When oppositely charged ions attract each other, common in sodium chloride
  6. 9. Formed from atoms
  7. 10. Short-hand abbreviation for the element name
  8. 13. Overall charge
  9. 14. In nucleus on the atom; positive charge
  10. 16. To push away from one another
  11. 19. Is made up of protons, neutrons, and electrons