Elements, Periodic Table, and Bonding Vocabulary

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Across
  1. 2. The neutrally (no charge) subatomic particle in the nucleus of an atom.
  2. 3. The bond between metals and nonmetals that gain or lose electrons
  3. 5. The positively charged subatomic particles in the nucleus of an atom
  4. 6. The man-made or laboratory made elements on the periodic table.
  5. 9. Metals have a shiny appearance, are good conductors of heat and electricity, can be melted, are malleable and ductile.
  6. 10. Forms of the same element that contain equal numbers of protons but different numbers of neutrons in the nucleus.
  7. 13. A process that involves rearrangement of the molecular or ionic structure of a substance.
  8. 15. The material involved in the change is structurally the same before and after the change.
  9. 22. An expression that shows the elements in a compound and the proportions of those elements.
  10. 24. Made of one type of atom, cannot be separated
  11. 25. A small number written at the bottom of the symbol. It depicts the number of atoms of the element present in the molecule.
  12. 26. The bond between nonmetals that share electrons
  13. 27. The averaged number of protons and neutrons in an element
Down
  1. 1. Organizes all discovered elements into rows (periods) and columns (groups) according to increasing atomic number.
  2. 4. The vertical columns on the periodic table, There are 18.
  3. 7. The horizontal rows on the periodic table, There are 7.
  4. 8. Electron in the outer shell of an atom.
  5. 11. A substance that is formed as a result of a chemical reaction. (to the right)
  6. 12. Smallest unit of matter
  7. 14. The numbers used to balance chemical equations placed in front of the chemical symbol or formula.
  8. 16. A change of materials into another, new materials with different properties and one or more than one new substances are formed.
  9. 17. The center of an atom that includes protons and neutrons.
  10. 18. An element whose properties are between those of metals and solid nonmetals or semiconductors.
  11. 19. Starting materials in a reaction that undergo a chemical change to form a product. (to the left)
  12. 20. A type of chemical element that lacks the characteristics of a metal.
  13. 21. The number of protons in an element
  14. 23. An atom or molecule with a net charge due to the loss or gain of one or more electrons.