Paramagnetism - Study guides, Class notes & Summaries

atomic number = correct answers # of protons mass number = correct answers # of protons + neutrons the number of protons in a neutral atom will equal the correct answers # of electrons how to find the correct number of neutrons correct answers mass number - atomic number Forms of the same elements that differ in amount of neutrons correct answers isotopes What particle, if lost from the nucleus, would NOT cause a change in the atomic number? correct answers a neutron because it ha...

MRI PRACTICE QUESTIONS and answers 2023What are two categories that diagnostic imaging contrast depends on? - correct answer Intrinsic and Extrinsic parameters Intrinsic parameters - correct answer -T1 recovery -T2 decay -PD -Flow These cannot be manipulated Extrinsic parameters - correct answer -TR -TE -FA -TI -b-value -echo train These can be manipulated by the MRT Factors that determine T1 and T2 relaxation times of tissue? - correct answer -the inherent energy of the tissu...

Slew rate - Speed at which gradient coil turns on and off Time-varying Gradient - Induced current in a patient Magnetic Flux Lines - Travel from North to South pole permanent magnet - Can not be turned off Very inexpensive; extremely heavy Approximately 0.4T Vertical vector Resistive magnet - Can be turned on and off Costly due to cooling Approximately 0.6T Vertical or horizontal vector Superconductive magnet - Approximately 10T Low electricity; reasonable...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...

General Chemistry ACS EXAM Review 168 Questions with Verified Answers Rutherford's Gold Foil Experiment - CORRECT ANSWER proposed that atoms consist of a tiny, massive, positive nucleus surrounded by electrons nucleus - CORRECT ANSWER contains all the positive charge and nearly all the mass of the atom James Chadwick - CORRECT ANSWER discovered the neutron cathode rays - CORRECT ANSWER move from negative electrode to positive electrode (like electrons in a voltaic cell) Thompson...

ACS Chemistry Final Exam 182 Questions with Verified Answers Layout of an element (mass # & atomic #) - CORRECT ANSWER atomic number = - CORRECT ANSWER # of protons mass number = - CORRECT ANSWER # of protons + neutrons the number of protons in a neutral atom will equal the - CORRECT ANSWER # of electrons how to find the correct number of neutrons - CORRECT ANSWER mass number - atomic number Forms of the same elements that differ in amount of neutrons - CORRECT ANSWER isotopes...

MRI System Component Questions and Answers 100% correct MRI machines vary in both size and shape The older designs had a more compact and small space and were very closed The scanner hardware required consists of: 1. A magnet 2. A radio frequency source 3.A magnetic field gradient system 4.A computer system 5.An image processor in the scanner hardware the magnet is for __________________ nuclear alignment in the scanner hardware the radio frequency source for RF is ...

MRSO Safety Exam with Complete S Slew rate - Answer-Speed at which gradient coil turns on and off Time-varying Gradient - Answer-Induced current in a patient Magnetic Flux Lines - Answer-Travel from North to South pole permanent magnet - Answer-Can not be turned off Very inexpensive; extremely heavy Approximately 0.4T Vertical vector Resistive magnet - Answer-Can be turned on and off Costly due to cooling Approximately 0.6T Vertical or horizontal vector Superconductive magnet...

Matse 201 Exam 3 Questions With Verified Answers...

Factors that affect rate of reactions (4) - Correct Answer temperature, physical state, reactant concentration, presence of a catalyst Average rate of appearance/disappearance - Correct Answer rate = ΔA/ΔT (negative if it asks for appearance and it's disappearing) Graphical representation of first order - Correct Answer ln[A] straight line negative slope Graphical representation of second order - Correct Answer 1/[A] straight line positive slope First order intedrated rate...