How does electronegativity vary along a group and along a period ?Give reasons and explain with the help of an example.
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So, as you move down a group on the periodic table, the electronegativity of an element decreases because the increased number of energy levels puts the outer electrons very far away from the pull of the nucleus. Electronegativity increases as you move from left to right across a period on the periodic table.
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The electronegativity of a compound element increases across a period and decreases down the group.
Explanation:
- Electronegativity can be defined as the force of attraction by which a particular element attracts a pair of electron towards its centre.
- As we move across a period the number of electron increases. As a result of this electronegativity of a compound also increases. However as we move down a group there is is increase in the size of the atom. As a result of this the distance from the centre of the atom increases. So electronegativity decreases down a group
to know more about electronegativity
Electronegativity trends in periodic table? - Brainly.in
https://brainly.in/question/8424277
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