A lateral lumbar spine radiograph demonstrates low image contrast, high exposure index, adequate positioning. Which imaging principle best explains the findings?                                                                                                                                                                                                                                                                                                                                                     

A lateral knee radiograph demonstrates significant magnification of the anatomical structures. Explain how the radiographer should adjust SID and OID to implement corrections on the repeat image. 

A student argues that radiographic processing is unnecessary because the image has already been formed when the x-ray exposure is made. Critically evaluate this statement and identify the most appropriate response.                                     

Question 10 (24 points total). Re-draw structures of anions A, B, and C on paper,then complete parts 1 and 2. part 1 (18 points) Draw all reasonable resonance contributors (if any) for anions A, B, and C. Be sure to include resonance arrows and brackets.Use curved arrow electron pushing to show how the various contributorsare related. You do not need to draw an “actual” resonance hybrid structure.If there are no reasonable resonance contributors, write “none” next to the structure. part 2 (6 points) Rank the anions A, B, and C from lowest energy to highest energy. BRIEFLY explain how you arrived at your ranking. To preview image: Click HERE     RANKING: (lowest energy)   _____  <  _____  <  _____   (highest energy) EXPLANATION:

To preview image: Click HERE Question 4 (5 points). How many nodes does the 2p atomic orbital have?   A) zero nodesB) one nodeC) two nodesD) three nodes

To preview image: Click HERE Question 3 (5 points). Rank the indicated bonds (A, B, C) in order of INCREASING bond dipole moment.     Option a: (smallest dipole moment)  C 

Question 10 (24 points total). Re-draw structures of anions A, B, and C on paper,then complete parts 1 and 2. part 1 (18 points) Draw all reasonable resonance contributors (if any) for anions A, B, and C. Be sure to include resonance arrows and brackets.Use curved arrow electron pushing to show how the various contributorsare related. You do not need to draw an “actual” resonance hybrid structure.If there are no reasonable resonance contributors, write “none” next to the structure. part 2 (6 points) Rank the anions A, B, and C from lowest energy to highest energy. BRIEFLY explain how you arrived at your ranking. To preview image: Click HERE     RANKING: (lowest energy)   _____  <  _____  <  _____   (highest energy) EXPLANATION:

To preview image: Click HERE Question 6 (5 points). Three resonance contributors (A, B, and C) that together describe the structure of the anion are show below. Which of these  is themajor contributor, or do they contribute equally and there is no major?   Option a) Contributor A is major. Option b) Contributor B is major. Option c) Contributor C is major. Option d) A and C contribute equally. Option e) None are major, all contribute equally.

Question 9 (22 points total). Re-draw the structure shown below on paper and thencomplete parts 1 and 2. part 1 (14 points) Directly ON TOP of the provided structure, draw a picture of themolecular orbital for the indicated bond. Then state which atomic orbitalsare used to “build” the molecular orbital. part 2 (8 points) Reproduce the empty table provided below. For the indicated atom, fill in this table by listing the hybridized and any unhybridized atomic orbitals and describe how each orbital is used. To preview image: Click HERE    

Question 9 (22 points total). Re-draw the structure shown below on paper and thencomplete parts 1 and 2. part 1 (14 points) Directly ON TOP of the provided structure, draw a picture of themolecular orbital for the indicated bond. Then state which atomic orbitalsare used to “build” the molecular orbital. part 2 (8 points) Reproduce the empty table provided below. For the indicated atom, fill in this table by listing the hybridized and any unhybridized atomic orbitals and describe how each orbital is used. To preview image: Click HERE