Question 1
Which set of quantum numbers (n, l, ml, ms) is valid for an electron occupying a 3d orbital?
Correct Answer:
(3, 2, -1, +1/2)
Question 2
What is the ground-state electron configuration of a neutral copper atom (Cu, Z = 29)?
Correct Answer:
[Ar] 4s¹ 3d¹⁰
Question 3
Which of the following Period 3 elements possesses the highest first ionization energy (I₁)?
Correct Answer:
Chlorine (Cl)
Question 4
Calculate the de Broglie wavelength of an electron (me = 9.11 × 10⁻³¹ kg) moving at a velocity of 2.00 × 10⁶ m/s. (Planck constant h = 6.626 × 10⁻³⁴ J·s)
Correct Answer:
0.364 nm
Question 5
What is the energy of a single photon of violet light with a wavelength of 400 nm? (c = 3.00 × 10⁸ m/s, h = 6.626 × 10⁻³⁴ J·s)
Correct Answer:
4.97 × 10⁻¹⁹ J
Question 1
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Prepare with the Madrid PAU Chemistry Practice Questions - Madrid PAU Chemistry Examination 2026 (Química 2o Bachillerato) Exam practice quiz. This question bank includes 100 questions covering reaction, calculate, standard, constant, and rate. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Madrid PAU Chemistry Practice Questions - Madrid PAU Chemistry Examination 2026 (Química 2o Bachillerato) Exam

This practice set contains 100 questions from the matching question bank and focuses on reaction, calculate, standard, constant, and rate. 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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