X is an alkali metal having a set of quantum number n = 3,1 = 0, and m=0. Y is a reactive
gas belongs to halogen family having atomic mass 35.5amu. Z is a transitional metal having
completely filled d-orbital and only one electron in its penultimate shell, n = 4.
Answer the following questions.
a) How many number of S-electron present in Z+.
b) Write all possible quantum numbers for the valence electron of Y.
c) Write the electronic configuration of Z-.
d) What are the shapes of valence orbital of X and Y?
e) Among X, Y and Z which element shows the exception of Aufbau principle? Why?
Answers
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Answer:149 amu is the molar mass.
Explanation:
Molar mass= 3(14+4×1)+31+16×4
=3×18+31+64
=54+95
=149 a.m.u
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