S. Brotzmann and H. Bracht determined the diffusivity of arsenic in germanium with D଴ ൌ 3.20 ൈ 10ିଷ mଶ sൗ and E஺ ൌ 2.71 eV. Using your favorite plotting software, calculate the diffusivity, DAs, as a function of temperature from 600 to 920 C and plot the data as an Arrhenius plot in two forms: a. ln(DAs) on the y-axis b. DAs on the y-axis on a log-scale Note: only computer generated plots will be accepted. Include axes labels (including appropriate units) on your plot.

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize