Radioactive decay - Study guides, Class notes & Summaries

Identify whether each reaction represents a chemical reaction or a nuclear reaction by filling in the blank with the word 'chemical' or 'nuclear'. Cl + H -> 2HCl This represents a ________ reaction. H + H -> He + n This represents a ________ reaction. - chemical nuclear Which statement best describes the two reactions? - Reaction B involves a greater change and a change in element identity. Explain why isotopes of the same element behave differently in nuclear reactions but no...

How do nuclear gauges work? Why does so much care need to be taken when using them? - AnswerNuclear gauges use the interaction of radiation with matter to measure the density and moisture of material. Radiation sources within each gauge transmit radiation through the test material. Detectors contained in the gauge measure the radiation that is scattered by the test material or that passes through it. By calculating the percentage of radiation that reaches the detectors, the gauge can determi...

CHEM 162 FINAL WXAM QUESTIONS AND ANSWERS, LATEST UPDATED 2024/2025 (GRADED) Which one of the following nuclear reactions is not correct? A. 226 88Ra → 222 86Ra + α B. 63 28Ni → 63 29Cu + βC. 11 C → 11 B + β+ D. 14 C → 14 N + βE. 14 7N + 1 0n → 14 C + 1 1p A. Correct. 22688Ra → 22286Ra + 4 α B. Correct. 6328Ni → 6329Cu + 0 -1e C. Not correct. 11 C → 11 B + 0 e 3 6 7 -1 6 D. Correct. 14 C → 14 N + 0 e E. Correct. 147N + 1 0n → 14 C + 1 1p CHEM 162...

NJ Radon Measurement Technician Exam (Practice Questions) with Complete Solutions What does it mean for a radon decay product to be "plated out"? It has attached to a non- breathable object If a radon decay product attaches to a solid object, such as a wall, it... ...can no longer be inhaled. What is a half-life? The time required for half of the atoms of a radioactive element to decay. Which type of radiation is responsible for the most cellular damage associated with radon ...

CHEM 162 FINAL WXAM QUESTIONS AND ANSWERS, LATEST UPDATED 2024/2025 (GRADED) Which one of the following nuclear reactions is not correct? A. 226 88Ra → 222 86Ra + α B. 63 28Ni → 63 29Cu + βC. 11 C → 11 B + β+ D. 14 C → 14 N + βE. 14 7N + 1 0n → 14 C + 1 1p A. Correct. 22688Ra → 22286Ra + 4 α B. Correct. 6328Ni → 6329Cu + 0 -1e C. Not correct. 11 C → 11 B + 0 e 3 6 7 -1 6 D. Correct. 14 C → 14 N + 0 e E. Correct. 147N + 1 0n → 14 C + 1 1p CHEM 162...

Two protons and two neutrons are released as a result of this reaction. Which particle is released? - (A) one alpha particle How can a scientist assess whether a pure niobium (Nb) sample is responsible for contaminating the lab with radioactivity? - (A) Test the niobium sample to see whether it now contains other elements. In alpha decay, alpha particles are ejected from the nucleus. Which equation represents alpha decay? - (A) An atom that has 84 protons and 86 neutrons undergoes a reacti...

ASP Prep Questions and Verified Answers (2024 / 2025)/ A+ GRADE 1. Rust, the most common kind of corrosion, is the action of which element on iron or aluminum? ANS Oxygen 2. Isopropyl alcohol has a flammability range between 2% and 12%; therefore, the Upper Explosive Limit is ANS 12% alcohol in air 3. A worker's exposure to an airborne contaminant in any 8-hour work shift of any 40-hour work week is known as the ANS Time weighted average. 4. Calculating radioactive decay requires informat...

Radon Measurement Professional Exam (InterNACHI and AARST) A _____ refers to the series of transformations that a given radionuclide will undergo, as well as the kind of radiation it emits, which are characteristic of the radionuclide - correct answer decay chain _____ are the extremely small particles of which we, and everything around us, are made. - correct answer atoms If one atom were the size of the Houston Astrodome, its nucleus would be roughly the size of a _____. - correct answe...

Chemistry 115 Purdue Past Exam Questions with Complete Solutions A gallium-69 ion (69Ga2+) contains (a) 69 protons, 31 neutrons and 33 electrons. (b) 31 protons, 38 neutrons and 29 electrons. (c) 31 protons, 69 neutrons and 29 electrons. (d) 69 protons, 31 neutrons and 29 electrons. (e) 31 protons, 38 neutrons and 33 electron (b) 31 protons, 38 neutrons and 29 electrons. The stable isotopes of neon (Ne) are: neon-20 (20Ne), neon-21 (21Ne), and neon-22 (22Ne). Neon-23 (23Ne), however, is ra...

BPI MFBA Review; Questions and Answers 100% Solved Types of indoor air pollutants Correct answer CO, Radon, Asbestos, Lead, Nitrogen Oxides, VOC (offgassing) dust particles, Mold, Bacteria Radon, What is it? Correct answer Decay of radioactive elements in the earth. Enters through cracks in holes and service pipe penetrations. It can diffuse through concrete and brick and wood. Colorless, Odorless, Tasteless. OSHA Correct answer Occupational Safety & Health Administration