1. How is the electron configuration of an element determined? How do you know how
many valence electrons an element has? (You may use nitrogen as an example
element if it helps you explain.)

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

Which statement can best be concluded from the ideal gas law?

Will mark brainliest how many electrons can be held in the energy level n = 4?