Science

123456789101112
Across
  1. 5. a negatively charged subatomic particle that is found in the space outside the nucleus of an atom
  2. 6. a unique number for each element that equals the number of protons in an atom of that element
  3. 8. a visual model of the most likely locations for the electrons in an atom
  4. 9. a positively charged subatomic particle that is found in the nucleus of an atom
  5. 10. a state in which all the electrons in an atom have the lowest possible energies
  6. 12. the dense, positively charged mass located in the center of an atom
Down
  1. 1. the possible energies that electrons in an atom can have
  2. 2. a neutral subatomic particle that is found in the nucleus of an atom
  3. 3. the sum of the number of protons and neutrons in the nucleus of an atom
  4. 4. the arrangement of electrons in the orbitals of an atom
  5. 7. atoms of a given element that have different numbers of neutrons and different mass numbers
  6. 11. a region of space around the nucleus where an electron is likely to be found