Energy and radius of first Bohr orbit of {\He}^{+}and {\Li}^{2+} are [Given {\R}_{ {\H}}=2.18 \times 10^{-18} {\J}, {\a}_0=52.9 {\pm} ] [NEET 2025]

Correct Answer is : En(Li2+)=−19.62×10−18J;rn(Li2+)=17.6pmEn(He+)=−8.72×10−18J;rn(He+)=26.4pm

{\E}_{ {\n}} ( {\Li}^{2+}) =-19.62 \times 10^{-16} {\J} ; r_{ {\n}} ( {\Li}^{2+}) =17.6 {\pm} {\E}_{ {\n}} ( {\He}^{+}) =-8.72 \times 10^{-16} {\J} ; r_{ {\n}} ( {\He}^{+}) =26.4 {\pm}

{\E}_{ {\n}} ( {\Li}^{2+}) =-8.72 \times 10^{-16} {\J} ; r_{ {\n}} ( {\Li}^{2+}) =17.6 {\pm} {\E}_{ {\n}} ( {\He}^{+}) =-19.62 \times 10^{-16} {\J} ; r_{ {\n}} ( {\He}^{+}) =17.6 {\pm}

{\E}_{ {\n}} ( {\Li}^{2+}) =-19.62 \times 10^{-18} {\J} ; r_{ {\n}} ( {\Li}^{2+}) =17.6 {\pm} {\E}_{ {\n}} ( {\He}^{+}) =-8.72 \times 10^{-18} {\J} ; r_{ {\n}} ( {\He}^{+}) =26.4 {\pm}

{\E}_{ {\n}} ( {\Li}^{2+}) =-8.72 \times 10^{-18} {\J} ; {\r}_{ {\n}} ( {\Li}^{2+}) =26.4 {\pm} {\E}_{ {\n}} ( {\He}^{+}) =-19.62 \times 10^{-18} {\J} ; {\r}_{ {\n}} ( {\He}^{+}) =17.6 {\pm}

Class 11 NEET Chemistry Structure Of Atom Questions

Question : 2 of 84

Marks: +1, -0

Energy and radius of first Bohr orbit of He+and Li2+ are
[Given RH=2.18×10−18J,a0=52.9‌pm ]

[NEET 2025]

‌En(Li2+)=−19.62×10−16J;
‌rn(Li2+)=17.6‌pm
‌En(He+)=−8.72×10−16J;
‌rn(He+)=26.4‌pm
‌En(Li2+)=−8.72×10−16J;
‌rn(Li2+)=17.6‌pm
‌En(He+)=−19.62×10−16J;
‌rn(He+)=17.6‌pm
‌En(Li2+)=−19.62×10−18J;
‌rn(Li2+)=17.6‌pm
‌En(He+)=−8.72×10−18J;
‌rn(He+)=26.4‌pm
‌En(Li2+)=−8.72×10−18J;
‌rn(Li2+)=26.4‌pm
‌En(He+)=−19.62×10−18J;
‌rn(He+)=17.6‌pm

Validate

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