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