Vocabulary 4

4. Have two valence electrons; lose the electrons easily making them only slightly less reactive than alkali metals. They are often added to alloys.
5. Have eight valence electrons; their outer energy levels are full
6. Distance from the center of an atom’s nucleus to the electrons in its outermost energy level
7. A set of elements in the same column on the periodic table, also known as family
10. States that the properties of the elements vary in a periodic way with their atomic numbers
11. Measure of an element’s ability to attract and hold electrons when bonded to other atoms
13. Have one valence electron; they easily lose said electron making them extremely reactive
14. Make up almost 80% of elements; have few valence electrons
17. Elements that have either one or two valence electrons
18. Consists of the element’s chemical symbol surrounded by the atom’s valence electrons.
19. Do not exhibit the general properties of metal; typically have four or more valence electrons

1. Have characteristics between those of nonmetals and metals
2. A table of the chemical elements arranged in a way that displays their periodic properties in relationship to their atomic numbers
3. Contains metals nonmetals, and metalloids; named for the first element in each family
8. Electrons in the outermost energy level of a neutral atom
9. Usually have two valence electrons; name derives from the placement between transition metals in the periodic table
12. Have seven valence electrons; tend to gain electrons making them very reactive
15. A row on the periodic table
16. A set of elements in the same column on the periodic table, also known as group