Below is a energy level scheme of a hypothetical one-electron element Mathematic

Question

Below is a energy level scheme of a hypothetical one-electron element Mathematicum. The potential energy is taken to be zero for an electron at an infinite distance from the nucleus. How much energy does it take to ionize an electron from the ground state level (n = 1)? What will be the final electron state if a photon of energy of 10 eV strikes a Mathematicum atom initially in its ground state level (ni = 1)? In other words, find the value nf of the final state if the atom absorbs a 10-e V photon. What will happen if a photon of energy of 7 eV strikes a Mathematicum atom in its ground state level? Explain why. Photons emitted in the Mathemticum transitions n = 3 to n =1 will eject photoelectrons from a certain metal. The work function of the metal is 4.00 eV. The work function is the minimum photon energy needed in order for an electron to escape the metal. Use conservation of energy to answer the following question: What is the kinetic energy of the ejected electorns?

Explanation / Answer

a)20ev b)nf=2 c)remain at n=1(ground state) minimum exitation energy here is 10ev

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.