The half-life of a radioactive isotope is the amount of time it takes for a quantity of radioactive material to decay to one-half of its original amount. The half-life of Iodine 131 (I-131) is 8 days. Determine the decay-rate parameter for I-131. Round to 2 decimal places.

If an electrostatically charged object is placed near other objects, which of the following will occur? select all that apply. it will be attracted to objects with the same charge. it will be attracted to object of the opposite charge. it will be attracted to objects with a neutral charge. it will be repelled by objects with the opposite charge.