Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The energy required to form ${Mg}^{2 +}$ from $Mg$ is much higher than that required to produce ${Mg}^{+}$
Reason R: ${Mg}^{2 +}$ is small ion and carry more charge than ${Mg}^{+}$
In the light of the above statements, choose the correct answer from the options given below.

Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : The energy required to form ${Mg}^{2 +}$ from $Mg$ is much higher than that required to produce ${Mg}^{+}$

Reason R: ${Mg}^{2 +}$ is small ion and carry more charge than ${Mg}^{+}$

In the light of the above statements, choose the correct answer from the options given below.

Aicharya · Accepted Answer

Mg have 2 electrons in valance shell and after donation of 2 &#160; electrons it converts into Mg 2 + ion and attains inert gas configuration, now to ionize one more electron from inert gas configuration is very difficult, hence it is easy to ionize Mg to &#160; Mg 2 + . IE 2 is always greater than IE 1 because on removal of e - , size decreases and effective nuclear charge increases.So Assertion is correct. Mg 2 + is a smaller ion than Mg + and has a greater charge density. This means that Mg 2 + has a stronger attraction to its electrons than Mg + and requires more energy to remove an electron from it. So reason is also correct.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R .…

Solution