The lennard-jones potential is widely-used to describe van der waals interactions. it has the form: v(r) = 4e s r 12 s r 6 where s and e are constants that vary with the atoms involved. s has units of length, and e has units of energy. (a) differentiate this and set the derivative to zero in order to find the equilibrium bond length and bond energy in terms of s and e. (b) for interactions between argon atoms, e = 1: j, and s = 0: 3345 nm. in solid argon, each atom interacts with 12 nearest neighbors at the equilibrium bond distance. use this information to estimate the total cohesive (that is, bonding) energy in 1 mole of solid argon.

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Quickly! brainliest if two people answer! 1. the blood has red blood cells, white blood cells and platelets. red blood cells carry oxygen to other cells in the body. cells need oxygen to live. white blood cells destroy certain germs. they protect our bodies from disease. which question is answered in this paragraph? (a) what is the role of blood vessels? (b) what type of cells are attached to bones? (c) what type of blood cell to clot your blood? (d) what are the different types of blood cells? 2. which sentence from the section "stem cells" best explains the role of stem cells? (a) when one kind of cell stops working, stem cells can . (b) they can turn into that cell and take its place. (c) scientists are studying new ways to use stem cells. (d) these cells can people heal faster. 3. read the selection from the section "nerve cells." nerve cells send messages to the rest of our bodies. these messages move between the brain, spinal cord and various organs. nerve cells are also called neurons. fill in the blank. a "neuron" is a (a) cell that moves information from the brain to other parts of the body (b) stem cell that has both an axon and a dendrite (c) cell that controls the fingers of a body (d) cell that makes up the spinal cord 4. some muscles in our body move without us telling them to. these are called involuntary muscles. some examples are the cardiac muscle cells inside the heart. these cells the heart relax and fill with blood. what is the best definition of "involuntary" based on the context clues? (a) something that happens on its own (b) trying hard to do something (c) something moving back and forth (d) easily moved

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge