A. The four isotopes of lead are shown below, each with its percent by mass abundance, the composition of its nucleus and atomic masses. Using this data, calculate the average atomic mass of lead.
82p, 122n, 1.37%, 203.97 amu
82p, 124n, 26.26%, 205.97amu
82p, 125n, 20.82%, 206.98amu
82p, 126, 51.55%, 207.97 amu

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

What is a number added in front of a formula in order to balance the equation