Description
100 Level Department of Science Laboratory Technology exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.
Questions:
a. Using Lewis diagram show the formation of the following compounds:
(i) NH₃
(ii) Cl₂
(iii) NaCl
(iv) CaO
b. Explain with diagram the shape of p-orbital and s-orbital.
c. Calculate the principal quantum number of the upper level when there is a transition by an electron in the Balmer series of 410 nm wavelength to n=2 (R_H = 1.097×10⁷ m⁻¹).
d. Write the electronic configuration of the following elements:
i. Aluminium
ii. Silicon
iii. Potassium
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