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Question
The atom of an element X has 7 electrons in its M shell.
What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.
What could element X be?
Short Note
Solution
The element will form an anion by gaining an extra electron in order to complete its octet.
Symbol of an ion of X will be X–.
X is Chlorine.
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Discovery of Charged Particles in Matter - Electrons (e)
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