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Question
Which of the following elements mentioned has the lowest electronegativity?
Which of the following elements mentioned has the lowest electronegativity?
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Solution
The correct option is D Na
An atom's electronegativity is affected by both its atomic number and
the distance at which its valence electrons reside from the charged
nucleus. The higher the associated electronegativity number, the more an
element or compound attracts electrons towards it. So in moving across a
period from Na,Mg,Al,P in a period the electronegativity increases
as the atomic size decreases and the electrons are attracted towards the
nucleus.The element Phosphorous has highest while Na has lowest electronegativity.
An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it. So in moving across a period from Na,Mg,Al,P in a period the electronegativity increases as the atomic size decreases and the electrons are attracted towards the nucleus.The element Phosphorous has highest while Na has lowest electronegativity.
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