Im really lost on this can u pls help 1. Propose a hydrogen electron transition that involves light with a wavelength in the ultraviolet (UV) range (10-400nm)
2. Propose a hydrogen electron transition that involves light with a wavelength in the infared (IR) range (1000-106 nm)

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

What is one real world example of a colligative property?