To determine whether Boron (B) is a metal, nonmetal, or metalloid we look at its position on the Periodic Table. Elements on the left-hand side (with the exception of H) are metals. can be found between the metals and non-metals on the Periodic Table and is therefore a metalloid.
Boron (B) can be found between the metals and non-metals on the Periodic Table and is therefore a metalloid.
In general, the properties for Metals, Non-Metals, and Metalloids are:
----Metals------
Found on Left Side of Periodic Table
Shiny
Malleable & Ductile
High Thermal and Electrical Conductivity
Form Positive Ions
(e.g. Na+, Cu 2+ , Al 3+ )
-----Metalloid------
Found between Metals & Non-Metals
Shiny or Dull
Brittle
Intermediate Conductivity
Tend to form Positive Ions
------Non-Metal------
Found on Right Side of Periodic Table
Dull
Solids are Brittle
(many are gases)
Poor Conductivity
Form Negative Ions
(e.g. Cl-, O 2-, P 3- )
Therefore Boron (B) is considered a metalloid.
