1. The following are properties of isotopes of two elements that are essential in our dietDetermine the number of protons, neutrons and electrons in each and name them(a) atomic number 26, mass number 58, charge of 2+(b) atomic number 53, mass number 127. charge of 1-

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(a)

Number of protons: 26 (atomic number)Number of neutrons: 58 - 26 = 32 (mass number - atomic number)Number of electrons: 26 - 2 = 24 (charge of 2+)

This is the isotope Iron-58 with a 2+ charge.

(b)

Number of protons: 53 (atomic number)Number of neutrons: 127 - 53 = 74 (mass number - atomic number)Number of electrons: 53 + 1 = 54 (charge of 1-)

This is the isotope Iodine-127 with a 1- charge.