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Elements having valency one are
- a)Always metals
- b)Always non–metals
- c)Always metalloids
- d)Either metals or non-metals
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Elements having valency one area)Always metalsb)Always non–metalsc)Al...
Elements with valency 1 are those elements which can either gain one electron or lose one electron in order to have stable electronic configuration.
An example is chlorine with atomic number 17. It has electronic
configuration as 2,8,7.
Hence, it accepts one electron to form Cl− and attains stable octet configuration. Such elements are non-metals.
Whereas, elements like sodium with atomic number 11 have electronic configuration as 2,8,1.
It is easier to lose the outermost electron to become stable and form Na+. Such elements are metals.
Hence, the correct option is C.
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Elements having valency one area)Always metalsb)Always non–metalsc)Always metalloidsd)Either metals or non-metalsCorrect answer is option 'D'. Can you explain this answer?
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