The concentration of yeast t-RNA in an aqueous solution is found to be 10 µg/mL Upon testing in the spectroscope the absorbance is was found to be 0.209 and when this solution was placed in a 1.00 cm cuvette and a certain monochromatic radiation of 258 nm radiation was passed through it. Answer the following questions. a. Calculate the specific absorptivity (extinction coefficient), including units, of yeast t-RNA.
b. What will be the absorbance if the solution is diluted to 5 μg/mL?
c. What will be the absorbance if the path length of the original solution is increased to 5.00 cm?

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

your answers are a,b,,e and f

i hope this

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8