1. -Boron(5) -Aluminum(13) -Gallium(31) -Indium(49) -Thallium(81)
The Boron Family
-Boron(5)
-Aluminum(13)
-Gallium(31)
-Indium(49)
-Thallium(81)

2. Boron Family 3 Outer Valence Electrons
Do not occur elementally in nature
Are scarce in nature
All metallic besides Boron(solid metalloid)
All soft and have a low melting point except for Boron
Chemically reactive at moderate temperatures

3. Boron Element no. 5 Atomic weight- 10.811 Color- Black/Brownish
Used for:
fiberglass insulation, fertilization, road or safety flares, wood preservatives, shields radiation, used as an insecticide

4. Aluminum Atomic number 13 Metallic
Uses: Aircraft, machinery, engine blocks, engine components, tools, etc.

5. Gallium Atomic Number 31 Color- Silvery White Classification- Metallic
Used as a key component for LED Lights and lasers

6. Indium Atomic Number 49 Color- Silver Lustrous Gray
Classification- Metallic
Gives off a high pitched scream when bent
Useful for making low-melting alloys
Produced mainly by Canada

7. Thallium Atomic Number- 81 Color- Silvery White
Classification- Metallic
Resembles lead when left in open air
Very soft and malleable, can be cut with a knife
Toxic and can cause cancer