Periodic Table

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Across
  1. 1. (known as group IA) a family of the Periodic table that has properties such as being very reactive, having one loosely bound valence electron, and being shiny
  2. 5. Father of the Periodic Table
  3. 8. A family of the Periodic table that are brittle solids and gain electrons easily
  4. 9. a family of the Periodic table with properties such as being fairly unreactive, having high melting and boiling points, and being good conductors of electricity
  5. 10. A stable subatomic particle that occurs in all atomic nuclei with a positive charge equal in magnitude to the unit of a electron charge
  6. 11. Vertical columns, and elements in these often have similar properties structures, and bonds
  7. 13. A family of the Periodic table that contains elements with the properties of having seven valence electrons, being highly reactive, and having very high electronegativitity
  8. 15. An element's most common name
  9. 17. (known as group IIA) a family of the Periodic table that has properties including low electron affinities, two electrons in the outer shell, and being quite reactive
  10. 18. A family of the Periodic table which has properties such as being radioactive, being highly electropositive, and being very dense with a distinctive structure
  11. 19. an abbreviation taken from the element's English or Latin name that is one or two letters
  12. 21. A family of the Periodic table that possess the characteristics of both Metals and Nonmetals
Down
  1. 2. A number that is equal to the number of protons in the nucleus and determines the place of an elements on the Periodic table
  2. 3. A family of the Periodic table that have properties of being fairly nonreactive, having a complete valence shell, and a having a low boiling point
  3. 4. An array of chemical elements in order of increasing atomic number
  4. 6. Recurring pattern in element's properties when arranged in order of increasing atomic number
  5. 7. A family of the Periodic table that contains properties like having high melting and boiling points, being silver colored, and being very reactive
  6. 12. A family of the Periodic table which has properties such as being solid at room temperature
  7. 14. A horizontal row of the Periodic table, and in this row elements have the same energy level
  8. 16. A neutral subatomic particle that is an essential part of almost every atomic nuclei and has no electrical charge
  9. 17. Expressed in atomic units and is the mass of an atom of an chemical element
  10. 20. A stable subatomic particle with charge of negative electricity