NJ Radon Measurement Technician Exam (Practice Questions) with Complete Solutions

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 and radon decay products? Alpha The negatively charged subatomic particle that orbits the nucleus is called a(n) electron Radon decay products that are not attached to airborne particles are much more likely to... deposit radiation into lung tissue if inhaled. The number of protons plus the number of neutrons in a specific atom is called Mass number The number of protons in an atom's nucleus is the same as the atom's... Atomic number The commonly assumed equilibrium ratio of radon decay products is: 0.4 All atoms of the same element must have the same... Atomic number The number of ______________ in an atom determines which element it is. Protons _________________ causes a neutral atom to become an ion. The gain or loss of electrons ________________ is a unit used to measure radon concentration. Picocurie per liter (pCi/L) When ___________ decays, it produces Radon-222 Radium-226 For an atom to be neutrally charged... it's number of protons and electrons must be equal. Different atoms of the same element can have differing numbers of neutrons. What are these different kinds of the same element called? isotopes What is the half-life of radon-222? 3.8 days Stack effect is caused by... Temperature differentials 3 factors that effect radon's ability to move through the soil: 1. Size of mineral grain in the soil 2. Dryness of the soil 3. Permeability of the soil (T/F) There is a strong correlation between low ventilation rates and high radon levels. False: there is not a strong correlation (T/F) Radon entry, and therefore indoor radon