Electron cloud - Study guides, Class notes & Summaries

Roentgen discovered x-rays while working with a _____ tube? CORRECT ANSWER Crookes An "electron cloud" surrounding the filament of the cathode is referred to as a CORRECT ANSWER Space charge Free electrons of X-ray production come from the CORRECT ANSWER Filament The creation of the space charge in the X-ray tube produces: CORRECT ANSWER thermionic emission The majority of photons in the X-ray beam are created by which process? CORRECT ANSWER Bremsstrahlung interactions More tha...

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...

Bio 1201 Exam 1 Gregg Questions and Answers Graded A+ Matter consists of chemical elements in pure form and in combinations called ______________. Compounds ______________ consists of chemical elements in pure form and in combinations called compounds. Matter Matter consists of ________________ in pure form and in combinations called compounds. Chemical elements Organisms are composed of _____________. Matter _______________ is anything that takes up space and has mass. Matt...

The atom - Consists of a small nucleus with a positive charge containing most of the weight. Has an electron cloud with mostly empty space but some electrons as well Protons - The chemical identity of the element Electrons - Ionic character of atom Neutrons - Isotopic character of the atom Atomic number (Above element on PT) represents... - Number of protons Mass number represents... - Sum of protons and neutrons Atomic mass (Under element on PT) represents... - An average of the atomic m...

AP Biology Unit 1 Latest Update with Verified Solutions -ose suffix carbohydrates usually end in (gluc-ose, fruct-ose) adhesion the attraction of unlike molecules; water molecules are attracted to other polar surfaces amino acid building block (monomer) of proteins, composed of an amino group and a carboxyl group, a hydrogen atom, and an R-group Amino Acid Examples glutamine, proline, cysteine, lycine, ... atom Smallest form of an element that still displays its particular pr...

Wilhelm Conrad Roentgen - Lived Discovered xrays on November 8, 1895 Discovered xrays at University of Würzburg (Germany) First xray was taken of Rowntgen's wife Anna Bertha's hand American Society of Radiologic Technologists (ASRT) - Founded in Chicago in 1920 Oldest and largest professional radiologic science organization American Registry of Radiologic Technologists (ARRT) - Founded in 1922 Establishes standards and exams necessary to certify radiologic technologists Joint R...

Astronomy Midterm 3 Exam - Questions and Answers (Complete Solutions) If you have a 100-watt light bulb, how much energy does it use each minute? A) 6,000 joules B) 6,000 watts C) 600 joules D) 600 watts E) 100 joules If a material is highly opaque, then it A) reflects most light. B) absorbs most light. C) transmits most light. D) scatters most light. E) emits most light. When light reflects off an object, what is the relation between the angle of incidence and the angle of reflection? A) angl...

Describe the architecture of an atom - Accurate Answers-The atom is the basic building block that makes up all matter -Protons (+) charge -Neutrons (neutral) charge -Electrons (-) charge -Protons and neutrons are in the center of the atom (nucleus), electrons orbit the nucleus in the electron cloud What is resting membrane potential in ventricular myocytes? Threshold potential? - Accurate AnswersRMP: -90 mV TP: -70 mV How do you know if an atom carries a charge? What is a char...

Non-Threshold - Any dose produces a response Thermionic Emission - Filament electrons are boiled off producing an electron cloud Bremsstrahlung - AKA Breaking Radiation. Occurs when a high speed electron from the cathode is deflected by the nucleus of a target atom Characteristic Radiation - Occurs when cathode electrons dislodge inner orbit electrons from the target atoms. Anode Heel Affect - Reduction of beam intensity due to interaction with heel of target Quality - Refers to penetrati...

APEX + NBCRNA REVIEW Question and answers 100% correct 2023/2024 Describe the architecture of an atom - correct answer -The atom is the basic building block that makes up all matter -Protons (+) charge -Neutrons (neutral) charge -Electrons (-) charge -Protons and neutrons are in the center of the atom (nucleus), electrons orbit the nucleus in the electron cloud What is resting membrane