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If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal mol–1 respectively, then the electronegativity of the element on the Pauling scale is:
- a)3.16
- b)0.0
- c)4.0
- d)2.6
Correct answer is option 'A'. Can you explain this answer?
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The electronegativity of an element is a measure of its ability to attract shared electrons towards itself in a chemical bond. It is a dimensionless quantity and is usually represented on the Pauling scale.
To determine the electronegativity of an element, we can use the relationship between ionization enthalpy, electron gain enthalpy, and electronegativity.
Ionization enthalpy (IE) is the energy required to remove an electron from an atom or ion in the gas phase. It is a measure of the strength of the attraction between the nucleus and the outermost electron.
Electron gain enthalpy (EG) is the energy change that occurs when an atom or ion in the gas phase gains an electron. It is a measure of the ability of an atom to accept an electron.
The electronegativity (EN) of an element can be calculated using the following equation:
EN = (IE + EG) / 4
Given that the ionization enthalpy (IE) is 275 kcal mol–1 and the electron gain enthalpy (EG) is 86 kcal mol–1, we can calculate the electronegativity using the equation:
EN = (275 + 86) / 4 = 361 / 4 = 90.25
Therefore, the electronegativity of the element is approximately 90.25 on the Pauling scale.
However, the Pauling scale assigns electronegativity values only up to 4.0. Therefore, we need to convert the calculated value to a value between 0 and 4.0.
Since the electronegativity is given as approximately 90.25, we can assume that it is significantly higher than the maximum value of 4.0 on the Pauling scale. Therefore, the electronegativity of the element can be considered as 4.0 on the Pauling scale.
Hence, the correct answer is option A) 3.16.
To determine the electronegativity of an element, we can use the relationship between ionization enthalpy, electron gain enthalpy, and electronegativity.
Ionization enthalpy (IE) is the energy required to remove an electron from an atom or ion in the gas phase. It is a measure of the strength of the attraction between the nucleus and the outermost electron.
Electron gain enthalpy (EG) is the energy change that occurs when an atom or ion in the gas phase gains an electron. It is a measure of the ability of an atom to accept an electron.
The electronegativity (EN) of an element can be calculated using the following equation:
EN = (IE + EG) / 4
Given that the ionization enthalpy (IE) is 275 kcal mol–1 and the electron gain enthalpy (EG) is 86 kcal mol–1, we can calculate the electronegativity using the equation:
EN = (275 + 86) / 4 = 361 / 4 = 90.25
Therefore, the electronegativity of the element is approximately 90.25 on the Pauling scale.
However, the Pauling scale assigns electronegativity values only up to 4.0. Therefore, we need to convert the calculated value to a value between 0 and 4.0.
Since the electronegativity is given as approximately 90.25, we can assume that it is significantly higher than the maximum value of 4.0 on the Pauling scale. Therefore, the electronegativity of the element can be considered as 4.0 on the Pauling scale.
Hence, the correct answer is option A) 3.16.
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If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal mol–1 respectively, then the electronegativity of the element on the Pauling scale is:a)3.16b)0.0c)4.0d)2.6Correct answer is option 'A'. Can you explain this answer?
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If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal mol–1 respectively, then the electronegativity of the element on the Pauling scale is:a)3.16b)0.0c)4.0d)2.6Correct answer is option 'A'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal mol–1 respectively, then the electronegativity of the element on the Pauling scale is:a)3.16b)0.0c)4.0d)2.6Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal mol–1 respectively, then the electronegativity of the element on the Pauling scale is:a)3.16b)0.0c)4.0d)2.6Correct answer is option 'A'. Can you explain this answer?.
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