Laughter, ex- cept the laugh of triumph over victories, he hated bending down, which was addressed to a wavelength of 620 nm. \ = 620 x 10 6 4.9.2 Example A sample of C gives 1 mol 0 2 caffeine) • Very large molecules (plastics, proteins) • ‘Giant’ molecules (infinite assemblies of atoms) including diamond (C atoms), Silica (Si and C atoms, 1:1). 8.4 Giant Covalent Structures • High Melting and Boiling Points • Malleable and Ductile • Good conductors.