2. Atoms & Elements

Which of the following is closest to the atomic mass of a magnesium (Mg) atom?

Which of the following is the atomic mass of cobalt (Co)?

Which number determines the arrangement of elements in the modern periodic table?

Which of the following elements has the greatest average atomic mass?

Which of the following numerical setups can be used to calculate the atomic mass of silver, given that silver has two naturally occurring isotopes: Ag-107 (abundance: 51.8%, mass: 106.905 amu) and Ag-109 (abundance: 48.2%, mass: 108.905 amu)?

Which unit is commonly used for measuring atomic mass?

An atom of lithium has 3 protons and 4 neutrons. What is the atomic mass of this lithium atom?

Which of the following is closest to the atomic mass of lead (Pb)?

Given the periodic table box for carbon below, which value represents the atomic mass?C612.01

Knowing the atomic mass of an element allows inferences about which of the following?

Which of the following best describes the difference between atomic number and atomic mass?

How is an atomic mass unit (amu) defined?

What distinguishes one element from another in terms of atomic structure?

How many protons are present in an atom of krypton?

Which of the following is the atomic mass of fluorine?