Verified Answers
Alkali metals - ANSWERSGroup 1: very reactive metals which do not occur freely in
nature.
1 electron in outer shell
Alkaline Earth Metals - ANSWERSGroup 2: next reactive metals, found in earths crust
but not in elemental form.
2 electrons in outer shell
Transition Elements - ANSWERSGroup 3-12: metals with varying reactivities. Greater
density than Group 1 or 2 elements.
1-2 electrons in outer shell
Lanthanides and Actinides - ANSWERSThese elements are also transition elements but
have been taken out to prevent the perioidic table being so wide.
Boron Group - ANSWERSGroup 13: reactive, contains metal and metalloid.
3 electrons in outer shell
Carbon Group - ANSWERSGroup 14: contains metalloids, metals and non metals.
4 electrons in outer shell
Nitrogen Group - ANSWERSGroup 15: contains metalloids, metals and non metals.
5 electrons in outer shell
Oxygen Group - ANSWERSGroup 16: contains contains metalloids, metals and non
metals. Reactive
6 electrons in outer shell
Halogens - ANSWERSGroup 17: non-metals, very reactive.
7 electrons in outer shell
Nobel gas - ANSWERSGroup 18: non-metals, non reactive.
8 electrons in outer shell