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Grade: 11

                        

The kinectic energy of the electron present in the ground state of Li2+ ion is represented by 1) (3e^2)÷(4pi e0r ) 2) (3e^2)÷(8pi e0r ) Could you please explain how you found it? Thanks

3 years ago

Answers : (2)

Ambarish Kumar Banerjee
53 Points
							
centripetal force is produced by electrostatic force. 
mv2 /r =e*Ze/4(pi)(epsilon naught)r2 .  cut a r from lhs and rhs an d multioply both sides by (1/2). u have the answer as 2
3 years ago
Yagnesh Devada
22 Points
							@ambarish the answer should be 8 since you are multiplying by 1/2, 4 is in the denominator denominator is being multiplied by 2
						
3 years ago
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