Question

Which one of the alkaline earth metals shows some
anomalous behaviour and has same electronegativity as
aluminium?
(a) Sr (b) Ca
(c) Ba (d) Be

Answer 1

(d) Be is the one of the alkaline earth metals which shows some anomalous behavior and has same electronegativity as aluminium.

• Be and Al  have diagonal relationship .
• The anomalous behavior of Be and Al is because of high ionisation energy and the exception in its small atomic size and ionic size.