How many protons,neutrons,and electrons are present in an atom of iron-59?
A) 26 protons,33 neutrons,and 59 electrons
B) 26 protons,33 neutrons,and 33 electrons
C) 26 protons,33 neutrons,and 26 electrons
D) 59 protons,26 neutrons,and 59 electrons
E) 59 protons,26 neutrons,and 26 electrons

Question

Quizplus · Accepted Answer

Iron (Fe) has an atomic number of 26, which means it has 26 protons and, in a neutral atom, an equal number of electrons. The mass number of iron-59 indicates it has a total of 59 protons and neutrons combined. Subtracting the number of protons (26) from the mass number (59) gives 33 neutrons.

How Many Protons,neutrons,and Electrons Are Present in an Atom of Iron-59