Across
- 3. measure of the tendency of an atom to attract an bonding pair of electrons.
- 4. Electrons-The electrons in the outermost shell of an atom that determine its chemical properties.
- 5. that are usually gases or brittle solid and are poor conductors.
- 6. Affinity-The energy change that occurs when an electron is added to a neutral atom.
- 9. Gases-Non-Reactives elements in group 18,known for their stable electron configurations.
- 10. Number-The number of protons in the nucleus of an atom,defining the element.
- 12. row in the periodic table representing the energy levels of electrons.
- 13. Energy- The energy required to remove an electron from an atom or ion.
- 14. Metals-Highly reactive metals in group 1 of the periodic table.
- 15. Number-The total number of protons and neutrons in an atomic nucleus.
Down
- 1. that are typically solid,conductive,and malleable.
- 2. column in the periodic table that contains elements with sim liar chemical properties.
- 7. pure substance that Cannot be broken down into simpler sub substances.
- 8. Metals-Element found in group 3-12 known for their ability to form various oxidation states.
- 11. with properties of both metals and nonmetals,found a long the Zig-Zag line on the periodic table.