04. Electronegativity trends
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What is electronegativity?
How strongly an atom can draw electrons to themselves in a bond
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What happens to electronegativity down a group?
Decreases
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Why does electronegativity decrease down a group?
More shielding of nucleus, making it difficult for nucleus to attract electrons in the bond
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What happens to electronegativity across periods?
Increases
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Why does electronegativity increase across a period?
Shielding of nucleus is constant as each element has same energy levels, Greater nuclear charge as there are more protons in nucleus, This makes it easier for atom to attract bonding electrons
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