An element has electronic configuration 2,8,4. It will be classified as:
A
metal
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B
non-metal
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C
metalloid
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D
none of these
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Solution
The correct option is C metalloid Metals have lower electronegativities and non-metals have high electronegativities .An element whose electronic configuration is 2,8,4 has electronegativity in between metal and non-metal . So will be classified as metalloid.