Question

the element with lowest ionization energy among group1 elements is?​

Answer 1

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Answer:

francium

Explanation:

The first ionization energy varies in a predictable way across the periodic table. The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.

Answer 2

Answer: Rubidium has lowest ionisation enthalpy

Explanation: As ionisation enthalpy decreases as going down the period

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