Across
- 4. An element that typically has four or more valence electrons that does not exhibit the general properties of metals; located on the right side of the periodic table
- 5. An element of Group 17 of the periodic table having seven valence electrons. It easily gains an electron, forming a 1- anion, which causes it to be highly reactive
- 8. A representation of an atom consisting of its chemical symbol with surrounding dots representing its valence electrons
- 11. An element that is typically dense, solid, ductile, malleable, highly conductive, and chemically reactive, especially in the presence of nonmetal elements. Metals are located on the left end of the periodic table.
- 13. A table of chemical elements arranged to display their periodic properties in relation to their atomic numbers
- 15. A column of elements in the periodic table having similar valence electron arrangement, resulting in similar chemical properties; also known as a group
- 16. (1) a row in the periodic table of elements; also called a series (2) the time interval (T) for one completely cycle of periodic motion
- 17. An element in Group 1 of the periodic table, having one valence electron that i can easily lose to form a 1+ cation, making it extremely reactive; the most reactive of all metals
- 18. A column of elements in the periodic table having similar valence electron arrangement, resulting in similar chemical properties; also known as a group
- 19. Any elements in Groups 3-12 of the periodic table, typically having one or two valence electrons, which easily loses, resulting in cation with changes of 1+ or 2+
Down
- 1. the law that states that the properties of the elements vary with their atomic numbers in a regular, repeated pattern
- 2. any electron in the outermost energy level of a neutral atom. Unpaired valence electrons are usually involved in chemical bonding
- 3. An element in Group 18 on the periodic table having eight valence electrons that fill the outer energy level. (Helium is an expedition with only two). WIth a full outer energy level, it is inert (I.e., non reactive).
- 6. An element from either of two rows usually placed below the periodic table; a member of either the lanthanide or actinide series. It typically has two valence electrons
- 7. The distance from the center of an atom’s nucleus to its outermost energy level.
- 9. Any of groups 13-16 in the periodic table; so named because they contain metals, nonmetals,and metalloids. These groups are often named for the first element in the family
- 10. An element with characteristics between those of metals and nonmetals; also called semiconductors; located between metals and nonmetals on the periodic table
- 12. An element in Group 2 of the periodic table, having two valence electrons that tends to lose easily to become a 2+ cation, making it very reactive
- 14. A measure of an element’s ability to attract and hold electrons when bonded to other atoms