Using Bohr's model, the speed of an electron in the first orbit is A) 3.14 × 10⁵m/s. B) 1.09 × 10⁶ m/s. C) 1.37 × 10⁷ m/s. D) 2.19 × 10⁶ m/s. E) None of these is correct.

Question

Quizplus · Accepted Answer

According to Bohr's model, the speed of an electron in the first orbit is given by v = (Z * e^2) / (4 * pi * epsilon0 * h), where Z is the atomic number, e is the electron charge, epsilon0 is the permittivity of free space, and h is Planck's constant. For hydrogen, Z = 1. Plugging in the values and solving for v gives v = 2.19 × 10^6 m/s. Therefore, the correct answer is D.

Using Bohr's Model, the Speed of an Electron in the First