Chemistry

2. when elements are arranged in order of increasing atomic number there are patterns in properties.
4. poor conductors of heat and electricity.
6. group 17 on the periodic table.
8. a row of elements.
10. measured using atomic radius and increase going down a group but decrease across a period.
12. groups 3-12 on the periodic table.
16. the tendency for atoms to attract electrons to itself when bonded.
18. group 18 on the periodic table and have a full outer shell of electrons.

1. group 2 on the periodic table.
3. contain properties between metals and nonmetals.
5. organized the periodic table by atomic mass.
7. good conductors of electricity and most of the periodic table.
9. the energy required to remove an electron from a gaseous atom.
11. metals the bottom two rows on the periodic table.
13. group one on the periodic table.
14. created the modern periodic table that is arranged by atomic number.
15. the tendency for inner electrons to shield outer electrons from nucleus pull.
17. a column of elements on the periodic table.