¿Se espera que la capa interna de electrones en un átomo de uranio esté más cerca del núcleo que la capa interna de un átomo de hierro? ¿Por qué?

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system