CHE 101 Spring 2019 Tutorial 1 Question and Solution

Set A

Draw the structure of Sodium Chloride crystal. [2]
Explain why the emission spectra of hydrogen has only certain frequency of light.[2]
Draw the structure of dxy and px.[1]
Explain briefly the conclusions of Rutherford’s Alpha Scattering Experiment. [2]
What will be the value of quantum numbers of an electron for which . [2]
Explain why despite being both made of carbon, graphite can conduct electricity, but diamond cannot? [2]
Identify the particle which contains 11 protons, 12 neutrons and 10 electrons. [1]
Draw the orbital diagram of Molybdenum (Atomic number of 42). [1]
What is the maximum wavelength of light that can free an electron from the surface of magnesium with a work function of . [2]

Set B

Draw the structure of Diamond. [2]
Explain why the emission spectra of hydrogen has only certain frequency of light. [2]
Draw the structure of d x^2-y^2 and px.[1]
Explain why despite being both made of carbon,graphite is soft,but diamond is hard?[2]
Identify the particle which contains 17 protons, 20 neutrons and 18 electrons. [1]
Draw the orbital diagram of Silver (Atomic number of 47). [1]
What is the maximum wavelength of light that can free an electron from the surface of magnesium with a work function of . [2]
What will be the value of quantum numbers of an electron for which . [2]
Find the frequency of photon that will be emitted when an electron in Na is de-exited from n=5 [2]

Below is the solution of the Tutorial question. Sorry for the handwritten solution and by bad handwriting.