IGCSE /Grade 10
Science MCQ Based On Formation of ions by electron loss or gain
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IGCSE Grade 10 Science Formation of ions by electron loss or gain
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An ion is an excess or deficiency of electrons.
It has 20 protons.
The diagram represents the transfer of electrons.
It is done to create stable atoms.
It acquires a negative charge.
The process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons.
These are the positive ions that are formed by losing electrons.
For example, positively charged sodium ions and negatively charged chloride ions bond together to make crystals of sodium chloride.
It is less than four.
An atom is an electrically neutral atom.
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