Atoms and Periodic Table Vocab

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Across
  1. 4. A group of atoms bonded together
  2. 6. Metals found in the center block of the periodic table
  3. 9. The center or the “core” of the atom where the protons and the neutrons live
  4. 10. The number of protons in the nucleus of an atom. This number also determines the chemical properties of the atom
  5. 12. Bonds that form between two nonmetals that happen when the elements share electrons
  6. 16. A negatively charged particle that orbits around the nucleus of the atom
  7. 18. A force of attraction from the sharing or transfer of electrons that holds two atoms or molecules together
  8. 20. A letter or pair of letters used to represent a chemical element
  9. 23. Electrons found in the outermost shell of an element
Down
  1. 1. Metals found in the two rows typically placed below the main group on the periodic table
  2. 2. A positively charged particle that lives in the nucleus of the atom
  3. 3. A neutral particle that lives in the nucleus of the atom
  4. 4. A physical combination of 2 or more substances without a chemical reaction occurring
  5. 5. The area around a nucleus that electrons orbit in
  6. 7. Bonds that form between a metal and a non metal that happen when the electrons are transferred between the two atoms
  7. 8. A pure substance that is made up of only one type of atom
  8. 10. The number of protons plus the number of neutrons in an atom. The units are Atomic Mass Units (AMU)
  9. 11. A chart that organizes all the known elements in rows and columns based on their atomic number and other chemical properties
  10. 13. Bonds that form between two or more metals that happen when electrons are freely flowing in a shared electron cloud
  11. 14. The basic unit of chemical elements
  12. 15. The ability of something to conduct heat or electricity. A way to tell how good of a conductor something is
  13. 17. The average atomic mass of an element, taking into account the relative amount of isotopes of the element
  14. 19. When 2 or more elements combine in a fixed ratio to form a new substance
  15. 21. An element that has properties that are like metals and also like non metals
  16. 22. An atom that has more electrons or less electrons than it normally has