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Across 4. Known as a polyatomic anion, it contains one or more elements that combine with oxygen 6. Forms two atoms to bond to the central atom in a 8. What is the method of indicating the partial positive charge and the partial negative charge in a polar covalent bond? 9. What is the distance a light wave travels to complete one cycle? 14. What is a single particle that is composed of non metal atoms? 15. The compound that contains only one metal and one nonmetal 17. A system that names atoms designating a variable charge on a metal cation using Roman Numerals in parenthesis 19. Group VIIA/17 elements on the Periodic 20. The term that refers to something that is known as a visible radiant energy, this energy is varies from Violet to red, and is visible and invisible.

Down 1. An Ion that is a negative charge is known as a_____ 2. What describes an electron in the probability that it is found in a specific location around the nucleus? 3. Electrons located in s and p sublevels and form chemical bonds 5. The Group of elements located in Group VIIIA/18 known as relatively unreactive 7. An Orbit with a specific energy that electrons occupy at a fixed distance from the nucleus. 10. Elements placed Vertically down the Periodic Table 11. A single atom, that shows a positive or a negative charge as the result of gaining or losing valence electrons 12. What Electron has the ability of an atom to attract a pair of electrons in a chemical bond 13. What are the elements called that contain an element number of 90 through 16. The atom model that describes about the atoms’ electron circling of the atomic nucleus and has an orbit of specific energy 18. This Molecular ____ is geometric , formed by the atoms bonded to the central atom in a molecule