Question

According to this periodic table, how many differents types of atoms are there? Are they all the same size?

Answer 1

The answer is 15 or I don’t know

Answer 2

Currently there are 118, it might be different from your table though. And no, atoms are not the same size.

Step-by-step explanation:

No atoms are not of the same size unless they are the same element. Atoms increase in size as you go up on the Periodic Table because of the number of protons and neutrons.