Question

The elements carbon, nitrogen, and oxygen are'll part of the same _____ on the periodic table?

Answer 1

Hello There!

It is definitely not groups.
They are in the same row, which are known as periods.
The elements carbon, nitrogen and oxygen are all part of the same period on the periodic table.

Hope This Helps You!
Good Luck :)

- Hannah ❤

Answer 2

C, N and O all belong to the same period, in which it's 2nd Period.