Hydrogen.
Hydrogen is the first, smallest, and lightest element. It is number 1 in the periodic table of elements.
No, hydrogen is ?the lightest element in the periodic table.
who are you have you ever looked at the periodic table of elements? Hydrogen is the lightest element while helium is the second lightest element. No.
The fourth lightest element on the periodic table is beryllium, with an atomic number of 4.
Hydrogen.
Hydrogen is the lightest of all elements. According to the Periodic Table, its atomic weight is 1.00794 u, even lighter than helium.
Helium with an atomic number of 2,is the lightest gas on the periodic table :)
Helium with an atomic number of 2,is the lightest gas on the Periodic Table :)
Hydrogen is the lightest element, with an atomic number of 1. Its low atomic mass and simple structure make it the lightest element in the periodic table.
hydrogen has the least mass of all the elements, so yes in a way, it is.
helium
the element is Hydrogen