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The Atom of an Element X Has 7 Electrons in Its M Shell.Is It a Metal Or a Non-metal? - Science

Short Note

The atom of an element X has 7 electrons in its M shell.
Is it a metal or a non-metal?

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Solution

Element X is a non-metal because there are 7 electrons in its outermost orbit. In order to complete its octet (to get 8 electrons), it will gain one electron. An element which gains electrons in order to complete its octet is a non-metal.  

Concept: Concept of Electron
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