2 is this element's atomic number
Answer Helium
Why did helium get the atomic number 2? Because it has two protons in its nucleus. And you thought chemistry was hard.
Last updated 5 years ago · 37.8K views · SOURCE
Why did helium get the atomic number 2? Because it has two protons in its nucleus. And you thought chemistry was hard.
Last updated 5 years ago · 37.8K views · SOURCE
-thumb.jpg)
-thumb.jpg)
