17. Give the symbol of the element described in each of the following:A. Largest atomic radius in Period 5. B. Smallest metal in Period 3. C. Highest IE1 in Period 3. D. Highest IE1 in group 4A: E. Group 3A element that forms the most basic oxide.

What atom has the largest atomic radius

Which diagram represents the phase tha occurs after a solid melts?

The allotropes of carbon include a variety of structures that include three-dimensional tetrahedral lattices, planes of hexagonal rings, cylindrical tubes of hexagonal rings, and spheres of five- and six-membered rings. similar shapes of network covalent atomic solids are possible with carbon nitride, boron, and pure silicon (e.g., silicene is a graphene-like allotrope of pure silicon). in contrast, silicates exist as either highly ordered or amorphous (more random) three-dimensional lattices. what could explain why there are there no naturally occurring sheets, stacked sheets, cylindrical tubes, or spheres of network covalent atomic solids composed of silicon and oxygen (sio2)? would pure silicate structures make good lubricants or good electrical conductors?