Extremadura PAU Chemistry Practice Questions - Extremadura PAU Chemistry Exam - Química 2o Bachillerato UEx 2026 Exam

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Calculate the de Broglie wavelength of an electron (mass m = 9.11 × 10⁻³¹ kg) moving at a velocity of 2.00 × 10⁶ m/s. (Planck's constant h = 6.63 × 10⁻³⁴ J·s).

0.364 nm 1.21 nm 3.64 nm 0.036 nm

Correct Answer:

0.364 nm

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