Chapter 4 Terms

2. 7 valance electrons highly reactive
10. 2 valence electrons
11. a row on the periodic table
12. a table of the chemical elements arranged in a way that displays their periodic properties in real relationship atomic number
15. 4 or more valence electrons don't exhibit general property of metals, exists as a gas, poorly conductive, and reactivity varies
17. another name for a family
18. characteristics between metals and non-metals, called semiconductors, brittle solid, conductive, and reactivity varies
19. 2 valance metals, less reactive,

1. 8 valance electrons, inert
3. electron electrons in the outermost energy level of a neutral atom
4. consists of the element's chemical system surrounded by the atom's valence electrons
5. 80% of electrons, few valence electrons, dense, conductive, and reactive
6. set of elements in the same column on the periodic table
7. the distance from the center of an atom's nucleus to the electrons in its outermost energy level
8. 1 or 2 valance electrons, used in alloys
9. contains metals, nonmetals, and metalloids
13. measure of an element's ability to attract and hold electrons when bonded to other atoms
14. 1 valance electron, reactive, Group 1, parts of compounds
16. the properties of an element vary periodically with their atomic numbers