Halogens, nobles gases, alkaline earth, alkali metals

Question 1

(Alkali Metals)

Answer 1

-first column
-have one electron in their outer shell
-can easily lose the valance electrons
-reacts with water

Question 1

(Alkaline earth metals)

Answer 1

-have 2 electrons in their outer shell
-easily lose valance electrons
-harder than alkali metals

Question 2

(Halogens)

Answer 2

-have 7 electrons in their outer shell
-toxic
-top halogen are more reactive

Question 3

(Noble Gases)

Answer 3

-have full outer shells
-more stable (less reactive)
examples:
-neon signs (Ne)
-helium balloon (He)
-gas in between window panes (Kc)
-lasers (KR)
-eight bulbs (AR)
-radioactive (Rr)
-propellant (Xe)