
Concept explainers
(a)
Interpretation:
Number of protons present in iodine and iodide anion has to be given.
Concept Introduction:
Neutral atom contains equal number of protons and electrons. When an electron is added or removed from a neutral atom, charged species known as ion is formed. If electrons are removed, then the formed ion is known as cation and if electrons are added, the formed ion is known as anion. Atom that has lost electrons will have positive charge and atoms that have gained electrons will have negative charge.
(b)
Interpretation:
Number of neutrons present in iodine-131 and iodide anion has to be given.
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Number of electrons present in iodine-131 and
Concept Introduction:
Refer part (a).

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Chapter 2 Solutions
General Chemistry
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