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An elements has the electronic configuration152, 252, 2p6, 382, 3P2 What is the numberof its vallence electron ? |
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Answer» Neon +3S2+3P2= SILICONVALENCE ELECTRON =4 required number of Valence Electrons is equal to 2 + 2 is equal to 4 total no of electron = =2+2+6+2+2 =141st orbit contain maximum electron = 22nd orbit contain maximum electron = 8in 3rd orbit = 4we know that uttermost electron is called valence electron 2 , 8 , 4here 4 is the outermost electron so valence electron is 4. 4 is the correct answer of the given question. |
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