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The increasing order of the first ionization enthalpies of the elements B, P, S and F (lowest first) is–
[AIEEE-2006]
  • a)
    F < S < P < B
  • b)
    P < S < B < F
  • c)
    B < P < S < F
  • d)
     B < S < P < F
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The increasing order of the first ionization enthalpies of the element...
In general as we move from left to right in a period, the ionisation enthalpy increases with increasing atomic number. The ionisation enthalpy decreases as we move down a group. P (1s2 2s2 2p6 3s2 3p3) has a stable half-filled electronic configuration than S (1s2 2s2 2p6 3s2 3p4). For this reason, ionization enthalpy of P is higher than S.
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Most Upvoted Answer
The increasing order of the first ionization enthalpies of the element...
Ionisation energy is inversly proportional to size.therefore as we move from left to right in periodic table size decreases . so as the size of flourine is small it has more ionizatin energy
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Community Answer
The increasing order of the first ionization enthalpies of the element...
Itss clearly defined in ncert please oncee check the ncert forr thiss doubt...
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The increasing order of the first ionization enthalpies of the elements B, P, S and F (lowest first) is–[AIEEE-2006]a)F < S < P < Bb)P < S < B < Fc)B < P < S < Fd)B < S < P < FCorrect answer is option 'D'. Can you explain this answer?
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