Helium is the lightest member in group 18.
No, hydrogen is ?the lightest element in the periodic table.
Helium is the lightest member in group 18.
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 :)
helium
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.
The first element in the periodic table is hydrogen. It is the lightest and most abundant element in the universe.
Hydrogen.
The lightest element in the group 2 of the periodic table of elements is calcium - with a density of 1,55 g/cm3.