Question

which of the following has least ionization potential a) Li b) Cs c) Cl d) l ​

Answer 1

Ionisation potential increases as we go from left to right in a period and it decreases as we go down the group

Hence the order will be

CL>I>Li>C's

I hope this helps ( ╹▽╹ )

Answer 2

Concept Introduction: The periodic table represents all known elements.

Explanation:

We have been Given: Ionisation Potential

We have to Find: which of the following has least ionization potential a) Li b) Cs c) Cl d) l

In physics and chemistry, ionization energy (IE) (American English spelling), ionisation energy (British English spelling) is the minimum energy required to remove the most loosely bound electron of an isolated gaseous atom, positive ion, or molecule. From Left to right the period is Li, Cs, Cl and I. Li and Cs belong to the same group, Group 1st, but the size of Cs is greater than Li. Therefore the Ionisation Potential of Cs is less than Li.

Final Answer: Cs has the least Ionisation Potential.

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