A new element called Oganesson (Og) with an atomic number of 118 was created in a science lab in Russia. The properties of Og are currently unknown. Based on its location in the Periodic Table, which properties can be predicted?

mildly reactive with metals

highly reactive with metals

unreactive with nonmetals

highly reactive with nonmetals

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?