Explain why (i) Be has higher i H than B? (ii) O has lower i H than N and F?
Question
Explain why (i) Be has higher i H than B? (ii) O has lower i H than N and F?
Solution
(i) Be (Beryllium) has a higher ionization enthalpy (Δi H) than B (Boron) because of its electronic configuration. Beryllium has a completely filled s-orbital (1s2 2s2) which gives it extra stability. Therefore, it requires more energy to remove an electron from the s-orbital of Beryllium as compared to Boron (whose outermost electron is in a p-orbital).
(ii) O (Oxygen) has lower ionization enthalpy (Δi H) than N (Nitrogen) and F (Fluorine) due to its electronic configuration. Nitrogen has a half-filled p-orbital (2p3) and Fluorine has a completely filled p-orbital (2p5), both of which provide extra stability due to symmetry. Oxygen, on the other hand, has an electronic configuration of 2p4, which is neither half-filled nor completely filled, making it less stable. Therefore, it requires less energy to remove an electron from Oxygen as compared to Nitrogen and Fluorine.
Similar Questions
) Consider the below statements about N3-, O2- and F- ions. i. They have the same electronic configuration. ii. The order of nuclear charge is N3-<O2-<F- iii. The order of radii is N3-<O2-<F- Select the correct answer about the true statements. A) Only i is true. B) Only iii is true. C) Both i and ii are true. D) Both i and iii are true. E) All i, ii and iii are true.
Which of the following two will give the same result?(i) 42//2(ii) 21%6(iii) 12/4(iv) 11*2ii,iiii, iiiii, iviii, i
Which of the following given is the correct increasing order of the atomic radii of O, F and N.O, F, NN, F, OO, N, FF, O, N
Which of the following pair of elements will show valency = 3A P and N B S and Cl C O and F D F and I
Which of the following two will give the same result?(i) 42//2(ii) 21%6(iii) 12/4(iv) 11*2ii,iiii, iiiii, iviii, iv
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.