Chemistry Honors: Units 1-3

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Across
  1. 1. Positively charged particles located in the nucleus.
  2. 5. An ion with a negative charge; formed when an atom or molecule gains one or more electrons.
  3. 6. The electrons located in the outermost energy level of an atom
  4. 10. Forms when one atom DONATES valence electrons to another atom
  5. 12. The number of protons in the nucleus of an atom
  6. 15. aka electron shell, ring, quantum level;Represent a fixed distance from the nucleus
  7. 17. A theory used to predict the 3D molecular geometry of a molecule
  8. 19. the weighted average mass of all the isotopes of an element
  9. 21. aka subshell; A subdivision of an electron energy level within an atom represented by s, p, d or f
  10. 24. An ion with a positive charge; formed when an atom or molecule loses one or more electrons
  11. 25. Negatively charged particles located in the electron cloud.
  12. 26. Elements that have the same number of protons (and atomic number), but a different number of neutrons.
Down
  1. 1. A molecule that acts as a single unit and carries a net electrical charge.
  2. 2. proton + neutron; always a whole number
  3. 3. An atomic model that depicts electrons orbiting the nucleus
  4. 4. Two or more atoms bonded together
  5. 7. A written representation showing how electrons are arranged using the energy level, sublevel and the number of electrons
  6. 8. A measure of an atom’s ability to attract shared electrons when forming a chemical bond.
  7. 9. A class of elements that lacks the characteristics of a metal: dull appearance, poor conductor of heat and electricity, and brittle.
  8. 11. A visual representation showing the energy of electrons within the sublevels of an atom by using lines and arrows
  9. 13. Uneven sharing of electrons in a chemical bond due to different electronegativity values between bonded atoms
  10. 14. A diagram representing the valence electrons in a molecule, showing their distribution as shared pairs (bonds) and unshared pair (lone pairs).
  11. 16. Atoms tend to gain, lose, or share electrons to achieve a stable configuration with EIGHT electrons in their valence shell.
  12. 18. A theory used to predict the 3D molecular geometry of a molecule.
  13. 20. A class of elements typically characterized by their shiny luster, excellent ability to conduct heat and electricity, malleability and ductility.
  14. 22. Neutrally charged particles located in the nucleus.
  15. 23. Forms when both atoms SHARE pairs of valence electron