Question

1. read the name of the elements in the first and second columns on the periodic table.

a) what do the names have in common?
b) which element is the exception?

Explanation:

a) The elements in the first and second columns of the periodic table are metals. Many of their names end with -ium (e.g., sodium, magnesium).
b) Hydrogen in the first column is a non - metal and is an exception as it doesn't follow the typical metallic naming and property patterns of other elements in the first column.

Answer:

a) Many names end with -ium.
b) Hydrogen