Question 1
Which set of quantum numbers (n, l, ml, ms) is permissible for an electron occupying a 3d orbital in an atom's ground state?
Correct Answer:
(3, 2, -1, +1/2)
Question 2
What is the ground-state electron configuration of the neutral copper atom (Z = 29)?
Correct Answer:
[Ar] 4s¹ 3d¹⁰
Question 3
How does the atomic radius generally change across Period 3 of the periodic table from sodium (Na) to chlorine (Cl)?
Correct Answer:
It decreases because the effective nuclear charge increases while inner shielding remains nearly constant.
Question 4
Which element has the highest first ionization energy among oxygen (O), fluorine (F), nitrogen (N), and neon (Ne)?
Correct Answer:
Neon (Ne)
Question 5
Which molecule serves as a classic example of an incomplete octet on the central atom in its ground-state Lewis structure?
Correct Answer:
BF₃
Question 1
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Prepare with the PAU Chemistry (Cantabria) Practice Questions - Cantabria PAU Chemistry 2026 (Pruebas de Acceso a la Universidad, Universidad de Cantabria) Exam practice quiz. This question bank includes 100 questions covering equilibrium, reaction, constant, energy, and pressure. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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PAU Chemistry (Cantabria) Practice Questions - Cantabria PAU Chemistry 2026 (Pruebas de Acceso a la Universidad, Universidad de Cantabria) Exam

This practice set contains 100 questions from the matching question bank and focuses on equilibrium, reaction, constant, energy, and pressure. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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