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A di-positive ion has an electronic arra...

A di-positive ion has an electronic arrangement 2,8,8 . Find out the number of electrons, protons and neutrons in that element if its mass number is 40.

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(a) Calculation of the atomic number of the element
(b) Calculation of the number of electrons in a neutral atom based on the configuration of positive ion
(c) The atomic number of a neutral atom
(d) The number of neutrons in a neutral atom based on mass number
(e) 20,20,20
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