Fcc lead has a lattice parameter of 0. 4949 nm and contains one vacancy per 500 pb atoms. Calculate (a) the density; and (b) the number of vacancies per gram of pb.

answer

the most effective ways of dealing with and reducing stress could be; listening to relaxing music, yoga, aromatherapy and meditation

explanation

when stress is effectively managed, it the effect stress has on a person’s life so they can be productive, happy and healthier. it is vital to identify the source of stress to be able to manage it. some stress management tips are keeping a positive attitude, practicing relaxation techniques, exercising regularly and eating healthier.