# The energy required to remove an electron from a surface of a solid element

1.The energy required to remove an electron from a surface of a solid element is called its work function.a) If a minimum of 423.6 kJ/mol is required to remove electrons from C atoms on a surface of a sample of carbon what is the maximum wavelength (max) of light that can remove an electron from a C atom on this surface? I got a = 2.824×102 nmneed help with the rest of the partsb) If the same carbon surface is irradiated with light of =221.8 nm what is the maximum kinetic energy that a released electron could have?c) The electron in an (unbound) hydrogen atom (H(g)) is excited from the ground state to the n=3 state.Which of the following statements are true and which are false.1) It takes less energy to ionize the electron from n=3 than it does from the ground state.2) The electron is closer to the nucleus on average in the n=3 state than in the ground state.3) The first excited state corresponds to n=2.4) The wavelength of light emitted when the electron drops from n=3 to n=2 is longer than the wavelength of light emitted if the electron falls from n=3 to n=1.5) The wavelength of the light emitted when the electron returns to the ground state from n=3 is larger than the wavelength of light absorbed to go from n=1 to n=3.d) What is the total number of p electrons in a single (ground state) Ge atom?e) What is the principal quantum number (n) for the valence electrons in thalium?f) How many atomic orbitals are there in a p subshell?g) What is the maximum value of the secondary quantum number (l) allowed for atomic electrons with a principal quantum number n = 1?h) In an atom what is the maximum number of electrons that can have a principal quantum number n = 3?

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