helium
No, hydrogen is ?the lightest element in the periodic table.
The fourth lightest element on the periodic table is beryllium, with an atomic number of 4.
Hydrogen.
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 :)
the element is Hydrogen
The lightest element on the periodic table with no stable isotopes is hydrogen. It only has one proton in its nucleus and no stable isotopes.
Helium is the lightest member in group 18.
From the Periodic Table The 'first element' is ;- Atomic No. 1. . which is Hydrogen (H) It has an atomic mass of '1'
Hydrogen.
Helium is the lightest member in group 18.
The lightest element known is hydrogen. It is the first element in the periodic table and has an atomic number of 1, making it the simplest and lightest element in the universe.