Post a New Question

Chemistry

posted by .

An electron moves with a velocity of 2.5 x 10^8 cm/s. What is its wavelength? (The mass of an electron is 9.109 x 10^-28 g.)

  • Chemistry -

    wavelength = h/mv
    m is in kg
    v in m/s
    wavelength in meters.

  • Chemistry -

    w = (6.626x10^-34 J*s)/[(9.109x10^-31 kg)(2.5x10^8 m/s)] = 2.91x10^-12 m

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    If the wavelength of an electron is equal to the radius of the n=2 orbit in He+, what must the velocity of the electron be?
  2. Chemistry

    How many electron domains are about the central atom if given the following angles: 90: 6 electron domains 109.5: 4 electron domains 120: 3 electron domains 180: 2 electron domains Correct?
  3. Physics

    A certain moving electron has a kinetic energy of 1.01 × 10−19 J. Calculate the speed necessary for the electron to have this energy. The mass of an electron is 9.109 × 10−31 kg. Answer in units of m/s.
  4. Chemistry

    the de broglie wavelength of an electron with a velocity of 6.00 x 10^6 m/s is ____m. the mass of the electron is 9.11 x 10^-28g.
  5. Physics

    An electron moves on a circular orbit in a uniform magnetic field. The strength of the field is 1.00×10-5 tesla. The kinetic energy of the electron is 178.0 eV. (1 eV = 1 electron volt = 1.6 ×10−19 joules.) Calculate the radius …
  6. Chem

    Hello What is the wavelength (in nm) of the line in the spectrum of the hydrogen atom that arises from the transition of the electron from the orbital with n =5 to the orbital with n = 2?
  7. chem

    What is the wavelength (in nm) of the line in the spectrum of the hydrogen atom that arises from the transition of the electron from the orbital with n =5 to the orbital with n = 2?
  8. Chemistry

    If the wavelength if determined to be 0.018 nm, at what velocity is the electron traveling?
  9. Chemistry

    An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the following statements are true?
  10. Chemistry

    Howard Wolowitz is developing a radiation detector for the Intemational space Station. He uses a thin film composed of a metal alloy that has a threshold frequency of 5.5x10^15 Hz. When radiation is shone on the thin film, the fastest …

More Similar Questions

Post a New Question