Question

An ion has 26 protons, 29 neutrons, and 23 electrons. The symbol for the ion is? The atomic mass is in the upper right corner. A) 52Cu3+ B) 5573- C) 55Fe3+ D) 52Cu3- E) 55Fe3-

Answer 1

Answer:55Fe3+

Explanation:The net charge on this ion is +3, because it has 26 protons and 23 electrons, that is 26+(-23)=+3.

atomic number of an atom is the number of protons.

The atomic mass is the sum of the protons and neutrons. The net charge is the difference between the number of protons, which have positive charges, and electrons, which have negative charges.

iron's atomic number is 26.

The atomic mass of this ion is 55,which is the sum of its protons and neutrons.