The nuclear symbol for an americium atom with a mass number of 243 is:

Question

Quizplus · Accepted Answer

The nuclear symbol for an atom of americium with a mass number of 243 will have 95 protons (the atomic number of americium) and 243 - 95 = 148 neutrons. The correct notation for this would be Am-243, with the mass number as a superscript and the atomic number as a subscript. The correct nuclear symbol would be:

_95Am^243

Among the answer choices, only choice C has the correct symbol.

The Nuclear Symbol for an Americium Atom with a Mass