Question

What group of elements begins with an atomic mass unit of 4 and ends with an

atomic mass unit of 294?

Answer 1

The noble gases.

Step-by-step explanation:

The element with a mass of 4 is helium, HE, atomic number 2.

The elenment with a mass of 294 is Oganesson, Og, atomic number 118.

The elements in this column are know as the noble gases since they are very stable and reluctant to engage in bonding with other elements. Someone must have though that was a nobel thing to do, and the nickname stuck.