Vocab 3

3. Come from group 18, each has 8 valence electrons except for helium which has 2.
5. A table of chemical elements arranged in a way that displays periodic properties in relation to their atomic number.
8. These are elements in group one, they only have one valence electron.
9. Consists of elements from group 17, these elements have 7 valence electrons.
10. Name for a row on the periodic table.
13. These are elements in group one tend to have 2 valence electrons which they lose making them 2+ cations.
15. A set of elements on the same colomn on the periodic table.
16. Have four or more valence electrons do not exhibit the general properties of metals.
17. An element that has few valence electrons.
19. The distance from the center of the nucleus to the electrons outermost energy level.

1. Model of the elements chemical symbol surrounded by the atoms valence electrons.
2. Make up groups 3 to 12 normally have one to 2 valence electrons.
4. Electrons in the outermost energy level of a nuetral atom.
6. Main body of the periodic table normally have 2 valence electrons.
7. A set of elements on the same column of the periodic table.
11. Make up groups 13 to 16 which contain metals, non-metals, and metalloids.
12. States that the elements vary in a periodic way with their atomic number.
14. Measure of an elements ability to attract and hold electrons when bonded to other atoms.
18. Elements that have characteristics between those of metals and non-metals, also known as semiconductors.