2. What does the diamond-shaped symbol stand for in a consumer product label?

The red diamond represents the potential hazards that are associated with the product.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.