However the atom has actually +1 fee which means that one proton is less than no of electron for this reason proton number is 107.

You are watching: What is the mass number of an ion with 108 electrons, 158 neutrons, and a +1 charge?

Put worths in over formula, we will get

Mass number= 107+108

= 215 massive number



Mass number may be defined as the sum of the variety of neutrons and variety of protons.

Mass number = No. Of protons + No. Of neutrons.

The atoms has equal variety of protons and equal number of electrons in a neutral atom. The ions has actually +1 charge and contains 108 electrons, it method the ion has losses one electron, the variety of proton must be 109.

Mass number = 109 + 158.

Mass number = 267.

Thus, the answer is 267.

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