Which of the following sets has the highest s | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) To determine the highest sum,we evaluate the ionization energies $(IE)$: $1$. $IE_1$ of $He$ is very high $(2372 \ kJ/mol)$. $2$. $IE_2$ of $Li$ i

Vedclass · Accepted Answer

$IE_1$ of $He$,$IE_2$ of $Li$,$IE_3$ of $Mg$

Vedclass · Answer

(B) To determine the highest sum,we evaluate the ionization energies $(IE)$: $1$. $IE_1$ of $He$ is very high $(2372 \ kJ/mol)$. $2$. $IE_2$ of $Li$ is very high $(7298 \ kJ/mol)$ because it involves removing an electron from a stable $1s^2$ configuration. $3$. $IE_3$ of $Mg$ is also very high $(7733 \ kJ/mol)$ as it involves removing an electron from a stable $2p^6$ configuration. Comparing the sets: Set $A$: $IE_1(He) + IE_2(Li) + IE_2(Ca) = 2372 + 7298 + 1145 = 10815 \ kJ/mol$. Set $B$: $IE_1(He) + IE_2(Li) + IE_3(Mg) = 2372 + 7298 + 7733 = 17403 \ kJ/mol$. Set $C$: $IE_1(Li) + IE_1(He) + IE_1(K) = 520 + 2372 + 419 = 3311 \ kJ/mol$. Set $D$: $IE_2(Na) + IE_2(Ba) + IE_2(Sr) = 4562 + 965 + 1064 = 6591 \ kJ/mol$. Thus,Set $B$ has the highest sum.

Which of the following sets has the highest sum of $IE$ values compared to all other sets mentioned?

Similar Questions

Which one of the following statements is incorrect in relation to ionization enthalpy?

The successive ionization energies of an element $(A)$ are given as $IE_1 = 20 \ eV, IE_2 = 45 \ eV, IE_3 = 150 \ eV, IE_4 = 900 \ eV, IE_5 = 1800 \ eV$. What is the formula of the halide of $(A)$?

Correct increasing order of first ionisation potential is

The first ionisation energies of alkaline earth metals are higher than those of the alkali metals. This is because

The first ionization enthalpies of $N$ and $O$ are respectively....... $eV$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module