Chapter 4 vocab

1. states that the properties of the elements vary in a periodic way
4. electrons in the outermost energy level of a neutral atom
7. elements in group 17, 7 valence electrons
8. elements in groups 3-12, 1 or 2 valence electron
9. 80% of all elements
11. do not exhibit the general properties of metals, typically have 4 or more valence electrons
12. get their name from their place on the periodic table, typically have 2 valence electrons
13. a set of elements in the same column on the periodic table
15. the measure of an element's ability to attract and hold electrons when bonded
18. groups 13-16(metals,nonmetals, and melloids)

1. a table of the chemical elements arranged so that their periodic properties are displayed in relationship to their atomic number
2. elements in group 18, 8 valence electron(besides helium)
3. elements that have characteristics between metals and nonmetals
5. elements in group 2, 2 valence electron
6. the distance from the center of an atom's nucleus to the electrons in its outermost energy level
10. consists of the element's chemical symbol surrounded by the atom's valence electrons
14. elements in group 1, 1 valence electron
16. a set of elements in the same column on the periodic table
17. a row on the periodic table