Question

Explain the anomalous behaviour of the second period elements

Answer 1

Answer:absence of d orbital

Explanation:due to abscence of d orbital 2nd period element cannot expand octet

And thus show anomalous behavior

With respect to their respective group

Answer 2

Answer:

Anomalous propertites are due to

1)small size.

2)high electro negativity.

3)absence of d-orbital.

Hope it helps u.