Question

Among the following elements the second ionization energy is maximum for:-

a. boron
b. beryllium
c. magnesium
d. aluminium​

Answer 1

Answer:

BORON

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Answer 2

Answer:

Among the following elements, the second ionization energy is maximum for Boron.

Explanation:

The chemical element boron has the atomic number 5 and the letter B in its symbol. It is an amorphous brown powder and a brittle, black, glossy metalloid in its crystalline form.

Boron has the second-highest ionization potential after B, Be, Mg, and Al. Magnesium and Beryllium are both members of group II-A, but aluminum and boron are members of group III-A. While B+ has an electronic configuration of 2s², boron has a 2s22p1 electronic configuration.

₅B⟶1s² ,2s² ,2p¹

It is challenging to remove the second electron from a fully populated s-subshell. Therefore, B's maximum ionization energy is the second.

13 Al⟶1s² ,2s²,2p⁶ ,3s² ,3p¹

Although it is challenging, the second electron must be removed from a fully filled s-subshell in this instance. However, because it is larger than a B, it is more straightforward to do so.