Multiple ChoiceWhich of the following is closest to the average atomic mass of phosphorus (P) as listed on the periodic table?32views
Multiple ChoiceWhich of the following best describes what the whole numbers on the periodic table represent?19views
Multiple ChoiceWhat is the atomic mass of the isotope of manganese (Mn) that contains 28 neutrons?27views
Multiple ChoiceWhich three types of information are required to calculate the average atomic mass of an element?26views
Multiple ChoiceAn element has two naturally occurring isotopes. One has an abundance of 37.40% and an isotopic mass of 184.953 amu, and the other has an abundance of 62.60% and a mass of 186.956 amu. What is the average atomic mass of the element?152views
Multiple ChoiceWhich of the following best describes how to calculate the average atomic mass of an element?35views
Multiple ChoiceWhich of the following numerical setups can be used to calculate the atomic mass of the element bromine, given that bromine has two isotopes: Br-79 (abundance 50.69%, mass 78.918 amu) and Br-81 (abundance 49.31%, mass 80.916 amu)?18views
Multiple ChoiceWhich of the following correctly represents the symbol for an atom of carbon with atomic number 6 and mass number 14?19views
Multiple ChoiceGiven the following atoms and their atomic masses: Hydrogen (1.008 u), Carbon (12.01 u), Oxygen (16.00 u), and Iron (55.85 u), which atom has the highest atomic mass?34views