Question

Why Berillium is plased in forth place and Boron is in fifth place in the periodic table​

Answer 1

Answer:

Ionisation energy (I.E) of Be is more than B and the reason can be explained as:

Electronic configuration of Be: 1s

2

2s

2

Electronic configuration of B: 1s

2

2s

2

2p

1

Be has stable fully filled configuration, therefore more amount of energy is required to remove an electron from Be, whereas less amount of energy is required to remove an electron from valence p-orbital in B.

Explanation:

hope it will be helpful

please mark me as brainliest