Which statement is true about the metalloids silicon? A. Silicon is a gas B. Silicon does not conduct electric current under any conditions C. Silicons ability to conduct electric current does not vary with temperature D. Silicon has more metallic properties than the element sulfur.

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?