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ECAT Practice Chemistry Atomic Structure MCQs Test 6
ECAT Quiz
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ECAT Practice Chemistry Atomic Structure MCQs Test 6

Practice ECAT 2026 Practice Test Chemistry MCQs from Atomic Structure. Get instant results with Explanation.
Practice Quiz 6 for "Atomic Structure" (Chemistry). Total 65 MCQs available, split into 7 quizzes. Challenge yourself with advanced application-based questions. This area is highly tested in ECAT.
General10 MCQs
1. The quantum mechanical model of the atom uses:
2. The principal quantum number n = 3 can have how many subshells?
3. Isobars are atoms with the same mass number but different:
4. Isoelectronic species have the same number of:
5. The azimuthal quantum number l = 2 corresponds to which subshell?
General10 MCQs
6. The total number of orbitals in a shell with n=4 is:
7. The maximum number of electrons that can be accommodated in the f-subshell is:
8. The electron configuration of K (Z=19) is:
9. The electron configuration of Ca (Z=20) is:
10. The electron configuration of Zn (Z=30) is:

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Conducting Body: UET
Frequency: Quarterly | Time: 100 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 100 MCQs):

Merit Formula: Typically, the aggregate is calculated as: (ECAT × 33.33%) + (FSc Part-I × 16.67%) + (Matric × 50%). However, the respective university may revise its merit calculation formula or admission criteria from time to time. Please confirm the official criteria before applying.

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