Question

An electron is ejected from a Li atom after being struck by a photon with the...

An electron is ejected from a Li atom after being struck by a photon with the energy of 757.8 kJ/mol. If the ejected electron has an energy of 237.6 kJ/mol, calculate the ionization energy for the ejected electron.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

we know

Ionisation energy + Kinetic energy = total energy

therefore

Ionisation energy = total energy - kinetic energy

                                = 757.8 KJ/mol - 237.6 KJ/mol

                                = 520.2KJ/mol

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Originally, a H-atom is in an n=2 state. a) After this atom absorbs a 77-nm photon,...
Originally, a H-atom is in an n=2 state. a) After this atom absorbs a 77-nm photon, the electron is ejected. The energy of the absorbed photon is.... b) The kinetic energy of the ejected electron is...
A Li atom absorbs with a wavelength 619.6nm, and is excited from the 2s ground state...
A Li atom absorbs with a wavelength 619.6nm, and is excited from the 2s ground state to the 2p excited state. If the first ionization of Li is 520.2kJ/mol, the wavelength of the photon required to ionize the excited Li atom is closest to A) 365.7nm B) 619.6nm C) 273.5nm D) 229.9nm E) 38.18nm
a) Originally, a H-atom is an n=5 state. The (total) energy of an electron in this...
a) Originally, a H-atom is an n=5 state. The (total) energy of an electron in this state is En = _______ eV. b) After this atom absorbs a 66-nm photon, the electron is ejected. The energy of the absorbed photon is Ey = _______eV. c) The kinetic energy of the ejected electron is K = _________eV
Given the following information: Li(s) → Li(g) enthalpy of sublimation of Li(s) = 166 kJ/mol HF(g)...
Given the following information: Li(s) → Li(g) enthalpy of sublimation of Li(s) = 166 kJ/mol HF(g) → H(g) + F(g) bond energy of HF = 565 kJ/mol Li(g) → Li+(g) + e– ionization energy of Li(g) = 520. kJ/mol F(g) + e– → F–(g) electron affinity of F(g) = -328 kJ/mol Li+(g) + F–(g) → LiF(s) lattice energy of LiF(s) = -1047 kJ/mol H2(g) → 2H(g) bond energy of H2 = 432 kJ/mol Calculate the change in enthalpy for: 2Li(s)...
In two-photon ionization spectroscopy, the combined energies carried by two different photons are used to remove...
In two-photon ionization spectroscopy, the combined energies carried by two different photons are used to remove an electron from an atom or molecule. In such an experiment a aluminum atom in the gas phase is to be ionized by two different light beams, one of which has wavelength 395 nm. What is the maximum wavelength for the second beam that will cause two-photon ionization? Hint: The ionization energy of aluminum is 577.6 kJ/mol nm?
A photon is incident on a hydrogen atom. The photon moves the electron from an n...
A photon is incident on a hydrogen atom. The photon moves the electron from an n = 5 energy level to an n = 10 energy level. A: Is this an absorption or emission process? Choose one. B: What is the wavelength, in nanometers, of the incident photon?
In two-photon ionization spectroscopy, the combined energies carried by two different photons are used to remove...
In two-photon ionization spectroscopy, the combined energies carried by two different photons are used to remove an electron from an atom or molecule. In such an experiment a copper atom in the gas phase is to be ionized by two different light beams, one of which has wavelength 327 nm. What is the maximum wavelength for the second beam that will cause two-photon ionization? Please answer in nanometers Hint: The ionization energy of copper is 745.4 kJ/mol please
1. a. A photon is absorbed by a hydrogen atom causing an electron to become excited...
1. a. A photon is absorbed by a hydrogen atom causing an electron to become excited (nf = 6) from the ground state electron configuration. What is the energy change of the electron associated with this transition? b. After some time in the excited state, the electron falls from the n = 6 state back to its ground state. What is the change in energy of the electron associated with this transition? c. When the electron returns from its excited...
An atom of He+ has its electron in the n = 3 energy level. The atom...
An atom of He+ has its electron in the n = 3 energy level. The atom is struck by a photon with an energy of 7.27×10–19 J, exciting the electron to a higher energy level. What level has the electron been excited to? (a) 2 (b) 4 (c) 5 (d) 6 (e) 7
A hydrogen atom transitions from the n = 6 excited state to the n = 3...
A hydrogen atom transitions from the n = 6 excited state to the n = 3 excited state, emitting a photon. a) What is the energy, in electron volts, of the electron in the n = 6 state? How far from the nucleus is the electron? b) What is the energy, in electron volts, of the photon emitted by the hydrogen atom? What is the wavelength of this photon? c) How many different possible photons could the n = 6...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT