consider the transition from the energy levels n = 3 to n = 4. What is the wavelength associated with this transition, in nm?

3 1/4 %

explanation:

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

gas

explanation:

smoke is the matter of a gas