Atom answer th - Study guides, Class notes & Summaries

Section A Answer all questions in this section. Do not write outside the box Two stable isotopes of helium are 4He and 3He. 2 2 . An atom of 4He is produced in a rock that contains uranium. It is produced following 2 the radioactive decay of a 238U atom. The decay also creates an atom of 92 thorium (Th). Write an equation for the decay of 238U. 92 [2 marks] 238U → 92 . A 3He nucleus can be produced by the decay of a tritium nucleus 3H. 2 1 Stat...

Bio 20 Final Exam Questions and Answers 100% Correct 1.) Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy as it increases in complexity? A) ecosystem, population, organ system, cell, community, molecule, organ, organism, tissue B) cell, molecule, organ system, organ, population, tissue, organism, ecosystem, community C) organism, organ system, tissue, population, organ, community, cell, ecosystem, molecule D) molecule, cell, t...

NMTCB-CT Test Questions with Correct Answers Where are x-rays made? - Answer-in the electron shell structure of an atom What is Bremsstrahlung radiation? - Answer-energetic electrons pass very near the nucleus of an atom. The strong forces of th positive charged atom causes the negatively charged electron to decelerate; the path of the electron is changed, and some of the kinetic energy of the electron is lost, and converted into x-rays what is characteristic x-ray radiation? - Answer-...

Electron Gun Model Answer - correct answer-- Low voltage supply heats filament causes thermionic emission/ electrons have enough energy to leave - Electrons are repulsed from the cathode (filament) and attracted towards the anode - This electric field causes electrons to accelerate - There is a hole in the anode which creates a beam for electrons that pass through - Electrons are then fired through a vacuum (to stop interfering particles) onto a fluorescent screen Photo Electric E...

General Chemistry ACS EXAM (2015 version) 60 Questions with Verified Answers A 20.0 g sample of mercury(II) oxide (HgO, M = 216.6) is heated strongly, causing it to decompose to metallic Hg and O2 gas. What volume of O2 gas is produced (measured at STP)? (A) 1.03 L (B) 2.07 L (C) 4.14 L (D) 14.0 L - CORRECT ANSWER A When 30.0 mL of 0.10 M AgNO3 is added to 30.0 mL of 0.10 M NaCl, aqueous NaNO3 and solid AgCl are formed. How much solid AgCl is produced? (A) 0.0030 mol (B) 0.0...

Bio 20 Final Exam Questions and Answers 100% Correct 1.) Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy as it increases in complexity? A) ecosystem, population, organ system, cell, community, molecule, organ, organism, tissue B) cell, molecule, organ system, organ, population, tissue, organism, ecosystem, community C) organism, organ system, tissue, population, organ, community, cell, ecosystem, molecule D) molecule, cell, t...

Where are x-rays made? - Answer-in the electron shell structure of an atom What is Bremsstrahlung radiation? - Answer-energetic electrons pass very near the nucleus of an atom. The strong forces of th positive charged atom causes the negatively charged electron to decelerate; the path of the electron is changed, and some of the kinetic energy of the electron is lost, and converted into x-rays what is characteristic x-ray radiation? - Answer-following the ionization of an atom that leaves...

ATOMS - Answer FUNDAMENTAL SUBMICROSCOPIC UNIT OF ALL MASS. SIZE OF THE ATOM AND ITS WEIGHT HAVE INTERESTED SCIENTISTS FOR A LONG PERIOD. SUBSEQUENTLY, EXPERIMENTS WERE DEVISED TO DETERMINE THE SIZE AND WEIGHT OF THE VARIOUS ATOMS. THE LIGHTEST OF ALL ATOMS IS HYDROGEN. PROTON - Answer A SUBATOMIC PARTICLE HAVING A POSITVIE CHARGE IDENTICAL IN MAGNITUDE TO THE NEGATIVE CHARGE OF AN ELECTRON AND, TOGETHER WITH THE NEUTRON, A COMPONENT OF ALL ATOMIC NUCLEI. THE PROTON FORMS, BY ITSLEF, THE NUCL...

FL 5 AAMC MCAT EXAM 2024 What is the chemical structure of a component found in four of the five cofactors used by Na+- NQR? -Answer-says it is composed of flavin structure is a nucleotide base structure B could be structure C also could be structure D is an amino acid down between B and C to help, look at the captioned note on the table. it says Fl represents flavin which is the redox active center in four of the five cofactors of Na+-NQR C has an uniquinone AND HERE IS IS MENTIONED T...

Where are x-rays made? Answer in the electron shell structure of an atom What is Bremsstrahlung radiation? Answer energetic electrons pass very near the nucleus of an atom. The strong forces of th positive charged atom causes the negatively charged electron to decelerate; the path of the electron is changed, and some of the kinetic energy of the electron is lost, and converted into x-rays what is characteristic x-ray radiation? Answer following the ionization of an atom that leaves an inne...