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Out of the elements with atomic number 7, 8, 9, 13 which has the smallest size and highest ionization enthalpy?
  • a)
    7
  • b)
    8
  • c)
    9
  • d)
    13
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Out of the elements with atomic number 7, 8, 9, 13 which has the small...
Elemen t with atomic number 7 has the smallest size and highest ionization enthalpy Nitrogen – Atomic Number 7

N has a stable half-filled electronic configuration therefore it is difficult to remove electron and hence it has a high ionization enthalpy.
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Most Upvoted Answer
Out of the elements with atomic number 7, 8, 9, 13 which has the small...
Explanation:
The size of an atom increases as we move down a group and decreases as we move from left to right in a period. The ionization enthalpy, on the other hand, increases as we move from left to right in a period and decreases as we move down a group.

So, out of the given elements with atomic number 7, 8, 9, 13, the smallest size and highest ionization enthalpy will be of the element which is located towards the right and top of the periodic table.

- Element 7: Nitrogen (N)

- Element 8: Oxygen (O)

- Element 9: Fluorine (F)

- Element 13: Aluminium (Al)

Fluorine (F) has the smallest size and highest ionization enthalpy among the given elements as it is located towards the top-right corner of the periodic table. Therefore, option C is the correct answer.
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Out of the elements with atomic number 7, 8, 9, 13 which has the smallest size and highest ionization enthalpy?a)7b)8c)9d)13Correct answer is option 'C'. Can you explain this answer?
Question Description
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