Periodic Table
Across
- 3. describes how likely an element is to form bonds with other elements.
- 4. an element that does not conduct electricity or heat and is usually a gas at room temperature.
- 7. elements and/or compounds that when put together are unable to react chemically.
- 8. Group 17 nonmetals on the periodic table that contain 7 valence electrons.
- 9. Ionization Energy, The energy required to remove an electron from the outermost energy level (valence electron)
- 11. Number, the number of protons contained in each nucleus of its atoms of the element.
- 12. a substance that cannot be broken down into a simpler substance by ordinary chemical means.
- 14. an atom that has gained or lost one or more electrons.
- 16. The attraction a nucleus has for electrons in a chemical bond.
- 19. an element or substance that conducts heat and electricity.
- 20. Earth Metals, Group 1 metals on the periodic table that contain 2 valence electrons
Down
- 1. Electrons, electrons that are located in the outermost energy level of an atom.
- 2. a vertical column (up and down) on the periodic table.
- 5. Metals, Group 312 on the periodic table.
- 6. Radius, The distance between the nucleus of an atom and it's outermost energy level (valence shell).
- 10. Mass, the number of protons and neutrons in the nucleus of one atom of the element.
- 11. the smallest unit of an element that has all of the properties of the element;
- 13. Charge, The charge of an atoms nucleus resulting from it's number of protons.
- 15. a horizontal row (left to right) in the periodic table.
- 17. Metals, Group 1 metals on the periodic table that contain 1 valence electron
- 18. an element that has some properties of a metal and some properties of a nonmetal.