Effective Nuclear Charge and the Polyelectronic Orbital Questions



Name of the programme

B.Eng NU (Chem, POM, MEE, ECE)

Name of Course with Code

General Chemistry for Engineering, EBS00101

Level/ Semester & AY

Level 1/ Semester A, 2020-21

Name of the Course Leader/Tutor

Dr. Priy Brat Dwivedi, Dr Shahjahan, Miss Amira Algharibi, Dr Syed Murtuza

Coursework type


Assessment weightage


Type and date of submission

Online submission, 15th November 2020


To develop the student’s ability to understand basics of atomic structure, periodic table and chemical bonding to investigate properties of materials.

Learning Outcomes

Explain the basic atomic structure and analyze properties of modern periodic table, chemical bonding and investigate properties of materials.

Question 1: It is not possible to observe the effect of De Broglie wave particle duality and Heisenberg uncertainty principle in daily life. But these two phenomenon are observable in case of subatomic particles like electron. Prove this observation with the help of suitable examples and discussion. [Words limit 400, Maximum marks 40]

Question 2: Atomic size of an atom is one of the most important parameter that affect various physical and chemical properties like ionization potential, electron affinity, metallic character etc. Discuss various factors that affect the atomic size of an element in a period and in a group. [Words limit 300, Maximum marks 30]

Question 3: Carbon dioxide (CO2) and methane (CH4) exists as gaseous substances at room temperature. But dry ice is solid while liquefied natural gas (LNG) is liquid. Discuss the bonding pattern among the molecules of dry ice and LNG. [Words limit 300, Maximum marks0]

Assessment Methodology





Demonstration of basic concept



Application of knowledge



Use of data and images








  1. Plagiarism is a serious offence. In case of any plagiarism detected, penalty will be imposed leading to zero mark. Policy and guidelines for dealing with plagiarism and malpractice in examination can be viewed by clicking:


  1. Lab reports should be submitted on time. College guidelines on late submission of coursework can be viewed by clicking: http://coeportal.nu.edu.om/member/contentdetails.aspx?cid=565
  2. For online submission of course work, a pdf file with appropriate cover page mentioning name of student, student number and title of the course work should be uploaded using the submission link created and made available by the course leader.
  3. Risk assessment form must be signed, scanned and attached with the first report.


Harvard Referencing (CCE Style) First Edition 2013 should be followed for both in-text and listing references. This downloadable document can be found in our NU-CoE Learn (blackboard).at: http://coeportal.nu.edu.om/member/contentdetails.aspx?cid=693


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