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As we move from left to right, the electronegativity increases. An atom which is highly electronegative has
- a)large size
- b)low electron affinity
- c)high ionisation enthalpy
- d)low chemical reactivity
Correct answer is option 'C'. Can you explain this answer?
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As we move from left to right, the electronegativity increases. An ato...
It is difficult to remove an electron from a highly electronegative element.
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As we move from left to right, the electronegativity increases. An ato...
Ionisation Enthalpy:
Ionisation enthalpy is the energy required to remove an electron from an atom in its gaseous state. As we move from left to right across a period in the periodic table, the electronegativity of elements increases. This means that atoms become more eager to attract electrons. Therefore, atoms with higher electronegativity values have higher ionisation enthalpies because they require more energy to remove an electron due to their strong electron-attracting ability.
Atomic Size:
Electronegativity and atomic size are inversely related. As the electronegativity of an atom increases, its atomic size decreases. This is because atoms with higher electronegativity values tend to attract electrons more strongly, pulling the electron cloud closer to the nucleus. As a result, the atomic size decreases. Therefore, atoms with high electronegativity values do not have large sizes.
Chemical Reactivity:
Highly electronegative atoms have low chemical reactivity because they are more likely to gain electrons rather than lose them. This makes them less likely to participate in chemical reactions where they would have to give up electrons. Therefore, atoms with high electronegativity values have low chemical reactivity.
In conclusion, the statement that an atom which is highly electronegative has high ionisation enthalpy is correct. This is because atoms with high electronegativity values require more energy to remove an electron due to their strong electron-attracting ability.
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As we move from left to right, the electronegativity increases. An atom which is highly electronegative hasa)large sizeb)low electron affinityc)high ionisation enthalpyd)low chemical reactivityCorrect answer is option 'C'. Can you explain this answer?
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