Question

locate the element helium (he) on the periodic table. what is the period number in which helium is found? what is the group name in which helium is found? 1a 5b 5a 8a

Explanation:

Helium is in the first period of the periodic table as it has one electron - shell. It is in group 8A (also known as noble gases), as it has a full outer - electron shell, similar to other noble gases.

Answer:

What is the period number in which helium is found? 1
What is the group name in which helium is found? 8A