Question(s) of the Day Answer the following questions on a piece of paper and put your name at the top. You have 8 minutes to complete the questions of the day. Good luck!

Scan chapter 1 and answer the following questions: 1)The diagram opposite represents the results of one of Rutherford’s experiments. The arrows show the possible trajectories of alpha particles when a sheet of gold foil is bombarded with them. a)What are alpha particles? b) Which arrow represents the trajectory most often observed during the experiment? Explain your answer.

Answer a) What are alpha particles? Answer: They are positive particles emitted by certain radioactive substances.

Answer b) Which arrow represents the trajectory most often observed during the experiment? Explain your answer. Answer: The trajectory observed most often is that of arrow B. Because atoms are mostly empty space, the majority of the alpha particles pass through the gold foil without being deflected.

Question of Day Hand in Assignment 13 Quiz on Assignment 13 Notes Web Exploration # B-2 & B-3 (FL) Assignment Chapter 1 Review Ch. 1 – Review

Atoms In the atomic model of potassium below, which letter represents a valence electron? Explain your answer. Answer: The letter D, because this electron is in the outermost electron shell.

4)Are the atomic representations below correct Lewis structures? If not, explain your answer. Magnesium Answer: It is illustrated correctly.

4)Are the atomic representations below correct Lewis structures? If not, explain your answer. Argon Answer: It is not illustrated correctly because argon has eight valence electrons, not nine.

6) Draw the Bohr Rutherford Diagrams for the following elements. Calcium P = E = N =

Finish the Assignment on chapter 1 review and have a nice weekend!