Chemistry - Complete Pblock- Question with Solution | TestHub

Boron fibers, specifically boron filaments, are known for their high tensile strength and stiffness-to-weight ratio. These properties make them ideal for use in advanced composite materials, such as those found in bulletproof vests and lightweight aircraft components, where strength and low weight are critical. Boron is a non-metal.

The final answer is $\boxed{Boron}$.