Science Vocab (chapter 4)
Across
- 3. a column of elements in the periodic table having similar valence electron arrangement, resulting in similar chemical properties; also known as a group
- 6. a row in the periodic table of the elements; also called a series
- 7. any elements in Groups 3–12 of the periodic table, typically having one or two valence electrons, which are easily lost, resulting in cations with charges of 1+ or 2+
- 9. an element from either of two rows usually placed below the periodic table; a member of either the lanthanide or actinide series.
- 13. an electron in the outermost energy level of a neutral atom
- 16. a representation of an element’s ability to attract and hold electrons when bonded to other atoms
- 18. an element that is typically dense, solid, ductile, malleable, highly conductive, and chemically reactive, especially in the presence of nonmetal elements
Down
- 1. an element in Group 1 of the periodic table, having one valence electron that it can easily lose to form a 1+ cation, making it extremely reactive
- 2. a table of the chemical elements arranged to display their periodic properties in relation to their atomic numbers
- 4. a measure of an element’s ability to attract and hold electrons when bonded to other atoms
- 5. any of groups 13-16 in the periodic table; so named because they contain metals, nonmetals, and metalloids
- 8. an element with characteristics between those of metals and nonmetals; also called semiconductors
- 10. an element that typically has four or more valence electrons and that does not exhibit the general properties of metals
- 11. an element in Group 2 of the periodic table, having two valence electrons that it tends to lose easily to become a 2+ cation, making it very reactive
- 12. an element in Group 17 of the periodic table having seven valence electrons
- 14. the law that states that the properties of the elements vary with their atomic numbers in a regular, repeated pattern
- 15. the distance from the center of an atom’s nucleus to its outermost energy level
- 17. an element in Group 18 on the periodic table having eight valence electrons that fill the outer energy level (helium is an exception with only two)