Consider four 2nd period elements A,B, C, D alongwith corresponding electron affinities and $IE_{1}$ , $IE_{2}$ and $IE_{3}$ , all in $KJ mol^{- 1}$
EA IE1    IE2 IE3
A   328   1681 3374      6050
B   141 1314      3388      5300
C   60     520      7298      11815
D   27      801      2427      3660
Calculate the sum of number of protons in A , B & C are :

Question

Consider four 2nd period elements A,B, C, D alongwith corresponding electron affinities and $IE_{1}$ , $IE_{2}$ and $IE_{3}$ , all in $KJ mol^{- 1}$

EA IE1 IE2 IE3

A 328 1681 3374 6050

B 141 1314 3388 5300

C 60 520 7298 11815

D 27 801 2427 3660

Calculate the sum of number of protons in A , B & C are :

TestHub · Accepted Answer

A = Fluorine B = Oxygen C = Lithium D = Boron

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