Chapter 1

Rows on the Periodic Table

Columns on the Periodic Table

Positive charge, found in nucleus, mass 1 amu 

No charge, found in nucleus, mass 1amu

Negative charge, outside nucleus, unimportant mass

Found in group one, very reactive, good heat/light conductors 

Found in second group, very reactive, not found in natur 

Found in third group, conduct heat and light, malleable and ductile 

Elements touching the step line with exception Aluminum