How unwanted radiation in AES, AFS, AES rejected

Reduce the intensity of radiations

Explanation:

Atomic Emission Spectroscopy is the study of electromagnetic radiations that are emitted by matter when it is excited. It is used to analyze intensity of light emitted. To end the radiations of AFS and AES their intensity is reduced and they are gradually rejected. It is not possible to completely eliminate the radiations immediately.

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