Chemistry
JAMB 1980
The following arrangement of elements in order of decreasing number of outer electrons; One of the elements is wrongly placed. Which is it? ALUMINIUM, CHLORINE, SILICON, MAGNESIUM AND SODIUM.
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A.
chlorine
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B.
aluminium
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C.
silicon
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D.
magnesium
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E.
sodium
Correct Answer: Option B
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