Question

While looking at xenon (Xe) on the periodic table, a student needs to find an element with a smaller atomic mass in the same group. Where should the student look?

directly up
directly down
directly to the left
directly to the right

Answer 1

Directly to the right

Answer 2

Student should look directly up

1. Periodic table arranges naturally available elements on the basis of their atomic number.
2. There are seven periods and eighteen groups in the periodic table.
3. In the same group, atomic mass increases down the group while in period, atomic mass increases from left to right.
4. Group eighteen contains noble gases starting from Helium.