What are the types Radicals in chemistry

Drive down any three characteristic of modern periodic table

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver