Question

1. Among Be, B and C, whose first ionisation energy is more? Why?​

Answer 1

Answer:

Hii

Explanation:

the order of ionisation energy is as:

Be> C> B

Explanation: The first ionisation energy of Be>B

because Berillium has a stable configuration

(1s^2, 2s^2) , so it requires more energy to

remove the first electron from it, wheres boron has electronic configuration (1s^2, 2s^2, 3s^1) which need less energy than berillium .

In Carbon and boron number of shells are same

but due to the addition of 1 electrons to the corresponding element of boron I.e, Carbon the nuclear charge increases. So it become difficult to loose an electron from Carbon as compared to Boron .

So overall we can say that Be requires more Ionisation

energy due to stable configuration

hope it will help u

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