Peculiar Behaviour of Beryllium: Beryllium is the s-block element of the modern periodic shows some differences from the rest of the members of its family. The electronic configuration of Beryllium is 1s2 2s2 The anomalous properties of beryllium is especially due the following reasons: small size high electronegativity  high ionization energy  high polarizing power (i) Beryllium atomPeculiar Behaviour of Beryllium | s-block element – mydigitalkemistry