Electron cloud - Guides d'étude, Notes de cours & Résumés

BIOLOGY 1201 FINAL EXAM GREGG WITH COMPLETE SOLUTIONSBIOLOGY 1201 FINAL EXAM GREGG WITH COMPLETE SOLUTIONSBIOLOGY 1201 FINAL EXAM GREGG WITH COMPLETE SOLUTIONS subatomic particles - ANSWER-protons, neutrons, electrons Proton charge and location - ANSWER-positive, nucleus neutron charge and location - ANSWER-neutral, nucleus Electron charge and location - ANSWER-negative (-) and outside nucleus in electron cloud valence electrons - ANSWER-electrons in the outermost shell incomplet...

QUESTION: How do you correct for attenuation? Ans: CT AC Map Cs137/Ge68 Transmisson QUESTION: Why is CT better for attenuation correction in PET? Ans: Decrease noise on attenuation map Decrease acquisition time Better anatomic info. QUESTION: How are x-rays produced? Ans: Bremsstrahlung radiation - (braking radiation) A charged particle interacts with an atom by entering the electron shell, slowing down, and changing direction before exiting the electron shell. The atom emits the Bre...

subatomic particles - ANSWER protons, neutrons, electrons Proton charge and location - ANSWER positive, nucleus neutron charge and location - ANSWER neutral, nucleus Electron charge and location - ANSWER negative (-) and outside nucleus in electron cloud valence electrons - ANSWER electrons in the outermost

Characteristics of exact numbers - no uncertainty - occurs in definitions, counting, and simple fractions Examples of exact numbers 3/5, 5/9, 12 dozen, 7 cats Characteristics of inexact numbers - number has degree of uncertainty associated - occurs anytime a measurement is taken Examples of inexact numbers height is 5'6", the table is 7'x4' (rules of sig figs) all nonzero digits are: significant (rules of sig figs) leading zeros are: never significan...

electron volt (eV) Ans- Very small amount Nucleus Ans- Contains most of the mass of atoms (neutrons and protons) Electron cloud Ans- Electrons surround cloud Electron Ans- 0 charge Neutron Ans- -1 charge Proton Ans- +1 charge Nucleons Ans- protons and neutrons in the nucleus Nuclide Ans- Generic term for a combination of nucleons (protons and neutrons) Atomic (proton #

describe the basic functions all life forms must accomplish -response to environmental stimuli & maintain homeostasis -uptake and processing of nutrients/energy -regulation -growth and reproduction compare and contrast eukaryotic and prokaryotic cell types Prokaryotes: -circular chromosomes, no nucleus, no organelles, 3.5 bya -DNA concentrated in nucleoid Eukaryotes: -linear chromosomes, nucleus, organelles, 1.5 bya -DNA concentrated in nucleus Both: -cellular function takes p...

Biology 1201 Final Exam Gregg Questions and Answers 100% Pass subatomic particles - protons, neutrons, electrons Proton charge and location - positive, nucleus neutron charge and location - neutral, nucleus Electron charge and location - negative (-) and outside nucleus in electron cloud valence electrons - electrons in the outermost shell incomplete valence shells - atoms can share or transfer electrons with other atoms, or make chemical bonds Atoms valence - Bonding capacity = the num...

RAD 121 FINAL EXAM QUESTIONS AND ANSWERS (ALREADY GRADED A+)RAD 121 FINAL EXAM QUESTIONS AND ANSWERS (ALREADY GRADED A+)RAD 121 FINAL EXAM QUESTIONS AND ANSWERS (ALREADY GRADED A+)tungsten is chosen as the material for the filament and anode target due to its? - ANSWER-high atomic number and melting point which of the following is created when a portion of an x-ray photon's is absorbed, which is also the primary source of occupational exposure - ANSWER-scatter radiation the structure in...

IB Bio A1.1 Water Questions and Answers Graded A+ List reasons why water is a substance on which life depends. A1.1.1 - Water as medium of life. 1. The first cells originated in water. 2. Water is the "universal solvent" allowing it to dissolve and transport molecules around a body. 3. Water is a metabolite in condensation and hydrolysis reactions. 4. Water is a temperature buffer in bodies and ecosystems. 5. Water maintains biological structures (such as phospholipid bilay...

CEM 141 MSU Exam 2 Questions and Answers Already Passed Which reaction requires the most energy? A. N(g) → N+(g) + e - B. N+(g) → N2+(g) + e - C. F(g) → F+(g) + e - D. F+(g) → F2+(g) + e - D. F+(g) → F2+(g) + e - Fluorine has a higher effective nuclear charge than Nitrogen - so it is harder to remove an electron (takes more energy because the electron is more strongly attracted by the nucleus). Effective nuclear charge is the same for F and F+ because the number of pro...