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Among the following, select the incorrect statement about the helium.
- a)The ionization energy of helium is highest
- b)The electron gain enthalpy of helium is positive
- c)Helium belongs to a group of elements, which are largest in size in respective period
- d)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic table
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Among the following, select the incorrect statement about the helium.a...
Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, and tasteless gas that is the second lightest element in the periodic table. Let's analyze each statement to determine the incorrect one.
a) The ionization energy of helium is highest
- This statement is true. Helium has the highest ionization energy among all the elements. This is because helium has a completely filled 1s orbital, which is the most stable electron configuration.
b) The electron gain enthalpy of helium is positive
- This statement is also true. Helium has a positive electron gain enthalpy. This means that helium does not readily gain an electron to form a negative ion. The reason for this is its small atomic size and stable electron configuration.
c) Helium belongs to a group of elements, which are largest in size in respective period
- This statement is true. Helium belongs to the noble gas group, which is the largest group in each period of the periodic table. The noble gases have the largest atomic radii in their respective periods due to the shielding effect of their filled electron shells.
d) The last electron of helium enters the 1s orbital, so it is placed with the s-block element in the modern periodic table
- This statement is incorrect. While it is true that the last electron of helium enters the 1s orbital, it is not placed with the s-block elements in the modern periodic table. Helium is actually placed in the p-block along with the other noble gases. This is because the electronic configuration of helium (1s2) is similar to the noble gases, and it exhibits similar chemical behavior.
In conclusion, the incorrect statement is option 'D' - The last electron of helium enters the 1s orbital, so it is placed with the s-block element in the modern periodic table.
a) The ionization energy of helium is highest
- This statement is true. Helium has the highest ionization energy among all the elements. This is because helium has a completely filled 1s orbital, which is the most stable electron configuration.
b) The electron gain enthalpy of helium is positive
- This statement is also true. Helium has a positive electron gain enthalpy. This means that helium does not readily gain an electron to form a negative ion. The reason for this is its small atomic size and stable electron configuration.
c) Helium belongs to a group of elements, which are largest in size in respective period
- This statement is true. Helium belongs to the noble gas group, which is the largest group in each period of the periodic table. The noble gases have the largest atomic radii in their respective periods due to the shielding effect of their filled electron shells.
d) The last electron of helium enters the 1s orbital, so it is placed with the s-block element in the modern periodic table
- This statement is incorrect. While it is true that the last electron of helium enters the 1s orbital, it is not placed with the s-block elements in the modern periodic table. Helium is actually placed in the p-block along with the other noble gases. This is because the electronic configuration of helium (1s2) is similar to the noble gases, and it exhibits similar chemical behavior.
In conclusion, the incorrect statement is option 'D' - The last electron of helium enters the 1s orbital, so it is placed with the s-block element in the modern periodic table.
Community Answer
Among the following, select the incorrect statement about the helium.a...
The last electron of helium enter in 1s orbital but due to full filled orbit, it is placed with the p-block element in modern periodic table.
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Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer?
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Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer?.
Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer?.
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Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Among the following, select the incorrect statement about the helium.a)The ionization energy of helium is highestb)The electron gain enthalpy of helium is positivec)Helium belongs to a group of elements, which are largest in size in respective periodd)The last electron of helium enter in 1s orbital so it is placed with the s-block element in modern periodic tableCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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