atomic structure

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Across
  1. 1. A row on the periodic table that describes the number of shells an atom has.
  2. 2. protons and neutrons have this but electrons have very little
  3. 4. the neutral sub atomic particle
  4. 5. when you have an equation and you have added numbers to make it ____________
  5. 7. The surname of the scientist who discovered atoms were mostly empty space
  6. 10. Where protons and neutrons are found
  7. 12. A molecule of Magnesium carbon and oxygen
  8. 14. what the particles did if they were influenced by the nucleus
  9. 15. an atom of the same element but a different number of neutrons
  10. 16. created the model that describes electrons being in shells
  11. 17. has an electron configuration of 2,8,1
Down
  1. 1. the positively charged subatomic particle
  2. 3. What electrons travel on
  3. 6. Electrons are ordered like this as 2,8,8,2
  4. 8. The particle fired at the gold foil to prove an atom was mostly empty space.
  5. 9. the negatively charged subatomic particle
  6. 11. A molecule of Sodium and Chlorine
  7. 12. The creator of the periodic table.
  8. 13. a column of the periodic table where they all have similar properties due to the number of electrons on the outer shell.
  9. 15. A charged particle that has gained or lost electrons