Positron particle - Study guides, Class notes & Summaries

Chapter 1 Basic Atomic Structure, Radioactive Decay Please answer all questions True or False. There is no negative marking. 1. Concerning the nucleus of atoms a. It is made up of protons and electrons b. It is made up of protons and neutrons c. Nucleons are held together by the strong nuclear force d. The mass number represents the number of protons e. The number of protons and neutrons is always equal The nucleus of an atom is composed of protons and neutrons. The charge of...

Radon Exam Radiation - correct answer energy emitted from a particle Radioactivity - correct answer emission of energy being created from the nucleus. Radons Half-life - correct answer 3.8 days Ionization - correct answer -radiation produces ions as it goes through matter -electron knocked off yields negatively charged particle -positively charged ion left over Three types of radiation - correct answer alpha, beta, gamma Gamma - correct answer energy being emitted form the nucl...

Radon Exam Question and answers correctly solved 2023/2024 Radiation - correct answer energy emitted from a particle Radioactivity - correct answer emission of energy being created from the nucleus. Radons Half-life - correct answer 3.8 days Ionization - correct answer -radiation produces ions as it goes through matter -electron knocked off yields negatively charged particle -positively charged ion left over Three types of radiation - correct answer alpha, beta, gamma Gamma - co...

ALPHA PARTICLE - nucleus of a helium atom, consisting of 2 protons and 2 neutrons, having a positive charge of 2. ANNIHILATION - total transformation of matter into energy; occurs after the anti-matter positron collides with an electron. ATOM - smallest division of an element that exhibits all the properties and characteristic of the element. BECQUEREL (Bq) - unit of activity in the International System. 1 Bq = 1 dps BETA PARTICLE - electron whose point of origin is th...

[Note to teachers and students: This Gizmo was designed as a follow-up to the Nuclear Decay Gizmo. We recommend doing that activity before trying this one. Vocabulary: chain reaction, CNO cycle, catalyst, deuterium, electron volt, fission, fusion, isotope, nuclear reaction, positron, positron emission, proton-proton chain Prior Knowledge Questions (Do these BEFORE using the Gizmo.) The chart to the right gives the isotope name, element name, number of protons, and number of neutrons of t...

Version 1 1 CHAPTER 1 1) Which technique creates a three-dimensional dynamic image of blood vessels? A) Digital subtraction angiography B) Magnetic resonance imaging C) Dynamic spatial reconstruction D) Positron emission tomography 2) Magnetic resonance imaging is based on the movement of A) electrons in a magnetic field. B) carbons in a magnetic field. C) protons in a magnetic field. D) cells in a magnetic field. 3) The delivery of a radioactive compound to the body to study the met...

What is the symbol for a proton? P can also be replaced with an H What is the symbol for a neutron? What is the symbol for an electron? e can also be replaced with a β What is the symbol for a positron? e can also be replaced with a β What is the symbol for an α particle? He can also be replaced with an α What is the symbol for a gamma particle? What is the charge on an alpha ray? 2+ What is the charge on a beta ray? 1- What is the charge on a gamma ray? 0 W...

The exposure rate of an activity of 1 millicurie (mCi) measured at 1 centimeter (cm) is called - ANSWER-- The exposure rate constant (ERC) For positron emitters, the exposure rate constant (ERC) is about 6 R/h per milli- curie at 1 cm. The exposure rate of a 10 mCi dose of F-18 is approximately six times greater than that of a 10 mCi dose of Tc-99 m at a distance of approxi- mately 8 inches. Quantitative bias that refers to the underestimation of counts density which differs from what they s...

Nuclides with the same atomic number but different numbers of neutrons are called? -ANSWER Isotopes Two nuclides with the same atomic numbers are called? -ANSWER Isobars Two nuclides with the same number of neutrons but different atomic numbers are called? -ANSWER Isotones What is a radionuclide? -ANSWER A nuclide that emits particular or photon energy to achieve a more stable energy state Another name for a helium ion containing two protons and two neutrons is? -ANSWER an alpha part...

"avaliable" energy resources - the availability of these resources depends on the cost and energy needed to extract and process these resources. Advantages of Coal - 1. Abundant 2. Cheep to transport Advantages of Natural Gas - Clean fuel, requires very little processing, readily transported over land through pipelines. It's carbon dioxide emission rate, per unit of energy, is lower than all other fossil fuels. It contributes less to smog formation than gasoline does. Advantages of Pet...