Multiple Choice
Which instrument is commonly used to measure the mass of atoms?
2. Atoms & Elements
Atomic Mass
Back2. Atoms & Elements
Atomic Mass
- 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)?
- Multiple ChoiceWhich of the following correctly represents the symbol for an atom of carbon with atomic number 6 and mass number 14?
- 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?
- Multiple ChoiceWhich of the following best describes the difference between mass number and atomic mass?
- Multiple ChoiceWhich of the following is the number of protons in a chlorine atom?1views
- Multiple ChoiceApproximately how many times heavier is a helium (He) atom compared to a hydrogen (H) atom?
- Multiple ChoiceWhich of the following elements has the greatest atomic mass?
- Multiple ChoiceChlorine has an atomic number of 17 and contains 18 neutrons. What is its mass number?
- Multiple ChoiceWhich of the following is closest to the atomic mass of lithium?
- Multiple ChoiceWhich of the following is the atomic mass of fluorine?
- Multiple Choice
Three isotopic forms of potassium exist: 39K, 40K and 41K. Potassium has an atomic mass of 39.0983 amu. Potassium-40 has an isotopic mass of 39.9640 amu and natural abundance of 0.0117%. Potassium-41 has an isotopic mass of 40.9618 amu and natural abundance of 6.7302%. What is the isotopic mass of Potassium-39?
6views - Multiple ChoiceWhich of the following elements has the lowest atomic mass?
- Multiple ChoiceWhat is the atomic number for potassium?
- Multiple ChoiceWhich of the following is closest to the atomic mass of calcium (Ca)?