Question

Anomalies in the position of the first period in modern periodic table

Answer 1

Answer:

Below is the answer.

Explanation:

The periodic table is used to describe the details of elements explaining their behaviors. There are various anomalies in the modern periodic table like atomic radius increases down the group due to addition of electrons while the valency decreases downwards without change in group. There are specific patterns in a periodic table called trends. These effect boiling and melting points etc of different elements.