If an Atom Has 43 Electrons, 56 Neutrons, and 43

question 46

Multiple Choice

If an atom has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass? What is the name of this element?

• A)atomic mass, 137 amu; barium
• B)atomic mass, 99 amu; technetium
• C)atomic mass, 99 amu; radon
• D)atomic mass 142 amu; einsteinium