How much of a 200.0 gram sample of 198Au is left over after 15.20 days if its half-life is 3.8 days? How many ½ Lives? Then answer the question.​

What type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? view available hint(s) what type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? salt bridge disulfide bridge hydrogen bond hydrophobic interaction