chemistry

posted by .

The energy levels the electron can occupy in the He+ ion can be calculated using the energy level equation. Calculate the frequency (Hz) of the photon emitted when the electron goes from a n= 4.00 energy level to a n= 3 energy level. Express answer in scientific notation.

  • chemistry -

    1/wavelength = 2.180E-18*Z^2*(1/3^2-1/4^2)
    Z for He is 2 so Z^2 = 4.
    Find wavelength, then c = frequency x wavelength to convert to frequency.

  • chemistry -

    do the (*) mean multiple..or are you using them to separate the numbers??

  • chemistry -

    * means multiply.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. electron

    An electron drops from the fourth energy level, in an atom to the third level and then to the first level. Two frequencies of light are emitted. How does their combined energy compare with the energy of the single frequency that would …
  2. chemistry

    help needed in drawing the diagram to show how hydrogen has numerous spectral lines I also need help with this question.... ---------------- ---------------- ---------------- ---------------- ---------------- -------------------- Each …
  3. Science

    Explain, with the help of an appropriate labelled sketch diagram, how a hydrogen atom, which has only one electron, has so many spectral lines. The diagram of the energy levels follows: --------------- --------------- --------------- …
  4. chemistry

    The energy levels the electron can occupy in the H atom can be calculated using the energy level equation. Calculate the wavelength (nm) of the photon absorbed when the electron goes from a n= 1 energy level to a n= 3 energy level. …
  5. chemistry

    The energy levels the electron can occupy in the Be3+ ion can be calculated using the energy level equation. A Be3+ ion with an electron in the n= 3.00 level emitted a photon with a frequency of 7.30 × 1015 Hz. What is the value of …
  6. chemistry

    an electron jumps from energy level to energy level two by absorbing a photon of energy 8eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level one
  7. Chemistry

    The energy (in joules) of an electron energy level in the Bohr atom is given by the expression: En = -2.179E-18/n2 J where n is the quantum number that specifies the energy level. What is the frequency in Hz of the radiation emitted …
  8. Chemistry

    An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1?
  9. Physical Science- Atomic Structure

    An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1?
  10. Chemistry

    An electron initially in the n = 2 energy level in a hydrogen atom absorbs a photon of light with a frequency of 6.167 x 1014 s-1. Calculate the new energy level the electron will occupy. I am not sure how to being.

More Similar Questions