Question

how many protons are in the atom designated by this symbol?

a) 56
b) 30
c) 26
d) 82

Explanation:

In the notation \(_{Z}^{A}X\) (where \(X\) is the element symbol, \(A\) is the mass number, and \(Z\) is the atomic number), the atomic number \(Z\) represents the number of protons in an atom. For the given symbol \(_{26}^{56}Fe\), the value of \(Z = 26\).

Answer:

C. 26