System of NLi Aom SYSTEM VLi Atoms WElectrons N States 1) Separation (R) Solid I
ID: 3348655 • Letter: S
Question
System of NLi Aom SYSTEM VLi Atoms WElectrons N States 1) Separation (R) Solid Isolaned Aoms Overlapping ners Free elcctron vacuum level Solit b) E (R) SYSTEM 2 H-Atoms E 2 Electrons 1 Electron/Atom EdR) Oibital/Atom c) For the Li atom material in (a) explain in your own words the reason only half of the possible states are filled 1) 2) In (b). describe if the system is at OK where the Ef0 is (Fermi energy) relative to the 3) What is the difference between bonding and anti-bonding, sigma and sigma* orbitals shown in (c)?Explanation / Answer
1)the electronic configuration of lithium is 1s^2,2s^1 , when two lithium atoms come close to each other their atomic orbitals combine to form 4 molecular orbitals two bonding or lower energy states and two and two antibonding or higher energy states the electrons will prefer to remain in lower energy states hence of the total N states only N/2 remain filled
2)the energy of highest occupied level at absolute zero temperature is called fermi leval from the diagram it is level 2s
3)the difference between bonding and antibonding orbitals is that bonding orbitals have lower energy and antibonding have higher energy
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.