6. The following graph shows the radial distribution functions of 6s, 4f, 5d, and 6p of an H atom. Which one is 4f?(A)A(B)B(C)C(D)D

10. Which property distinguishes inorganic nanoparticles from their bulk counterparts?(A)Increased solubility in polar solvents(B)Reduced surface area to volume ratio(C)Enhanced reactivity due to decreased surface area(D)Altered optical, electronic, or magnetic properties at the nanoscale(E)Lower sensitivity to environmental factors compared to bulk materials