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University of Barishal

Department of Computer Science and Engineering

1st Mid Exam

Course Title: Chemistry (CHEM-1107)

Semester: 1st | Session: 23-24

Time: 50 minutes | Marks: 10.00

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Answer all of the following questions

1.

1)

Calculate the number of protons, neutrons, and electrons of the following atoms or ions:

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2 Marks
2)

Draw the shape of five d orbitals.

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2.50 Marks
3)

Sc is a d block element, but not a transition metal- explain why?

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2 Marks
4)

Which of the following orbitals are possible and not possible: 2s, 2d, 3p and 3f. Mention the reason.

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2 Marks
5)

Find the maximum wavelength of spectral lines of Balmer series in Hydrogen atom. Given that, Rydberg constant is 109679 cm-1.

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1.50 Marks
View 49 Topic-wise Questions for this Course

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Uploaded By: Israt Jahan May 14, 2025, 2:54 p.m.
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