Radiation Safety Study Review (Keywords A Student Must Know) Radiation Safety Beginner Course

Radiation Safety study review (key words a student must know) Radiation safety beginner course which of the following is a pure substance that cannot be broken down into simpler substances by chemical means? - Element Which of the following has no charge? - Gamma Ray The smallest unit of a compound that still retains the unique physical and chemical characteristics of the compound is a? - Molecule Which of the following is a substance composed of different elements bound in fixed proportions? - Compound Which of the following is the smallest unit of a compound still retaining its unique physical and chemical characteristics? - Molecule Which of these is a characteristic of an atom? - A single central nucleus z=1 proton z=6 protons z=26 protons also known as atomic number (z) - Hydrogen Carbon Iron What is the atomic mass number? - The sum of protons and neutrons in an atom What is the atomic mass of this lithium atom? - 6 Refer to the Periodic Table of Elements to identify an element with an atomic number of eighty-eight (88). - Ra What configuration defines an isotope? - The same number of protons but a different number of neutrons Given