Question

If the graph is plotted between atomic numbers and
ionisation potential. Which group of element
occupy the lowest position on the curve -
(1) Alkaline earth metal
(2) Inert gas
(3) Halogen
(4) Alkali metals

explanation please!!​

Answer 1

Answer:

3 Pakka hai

thanks I can't explain

Answer 2

(1) Alkaline earth metal .

• Alkaline earth metal  shows lowest ionization enthalpy as if they are the biggest in the given period & it has lowest effective nuclear charge than of rest elements in period. It further then decreases as we go down the group. Thus the Alkali earth metals have lowest IE.

• Group -01 of Periodic Table features the metals whose valence electron is single & occupies the outermost shell, i.e valence shell of  given atoms. Since that the nuclear charge is necessarily diminished with the respect to the valence shell. Alkali metals display's lowest ionization energy & these energies decrease down the Group.

• The Ionization energy means that the amount of energy required to remove the outermost electron. In 1st group element's having single outer-most electron, they can easily donate that electron to attain octet configuration.

• Which is the most stable configuration. So, by using the less energy we can remove electron they having low ionization energy.

Thus the answer is  Option (1) Alkaline earth metal .

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