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An Electro magnetic radiation of wavelen...

An Electro magnetic radiation of wavelength 484 nm is just sufficient of ionise a sodium atom. Calculate the ionisation energy of sodium in kJ/mo, approximately?

A

494.5

B

594.5

C

694.5

D

794.5

Text Solution

Verified by Experts

The correct Answer is:
A
`E= (hc)/(lambda)= E xx N_A`
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