The ionisation enthalpy of lithium is much lower than that of helium despite the fact that the nuclear charge of lithium is `+3` and that of helium is `+2`. It is due to:A. 2s electron in lithium is more strongly bound to the nucleus than the 1s electron in HeB. 2s electron in lithium is equally bound to the nucleus than the 1s electron in HeC. 2s electron in lithium is less strongly bound to the nucleus than the 1s electron in HeD. Atomic size of He is more than Li

The ionisation enthalpy of lithium is much lower than that of helium d

1.	The ionisation enthalpy of lithium is much lower than that of helium despite the fact that the nuclear charge of lithium is `+3` and that of helium is `+2`. It is due to:A. 2s electron in lithium is more strongly bound to the nucleus than the 1s electron in HeB. 2s electron in lithium is equally bound to the nucleus than the 1s electron in HeC. 2s electron in lithium is less strongly bound to the nucleus than the 1s electron in HeD. Atomic size of He is more than Li
Answer» Correct Answer - C

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