What is uranium classified as Akali Metals, Akaline Metals, Metalloids, Halogen, Noble Gas, Transition Metal, Rare Earth Metal or Non-Metal?

SOMEONE PLEASE HELP I NEED THIS NOW PLEASE JUST THIS ONE QUESTION I DON’T KNOW

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

How do you lengthen a pattern piece? (family and consumer science, sewing)

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?