the lightest elements are gases and the lightest of these are hydrogen and helium.
helium
generally, you can look at the Periodic Table of Elements. hydrogen is the lightest of both
Hydrogen is the lightest of all elements and is extremely flammable. It is also the most plentiful gas in the universe.
Hydrogen is the lightest of all elements. According to the Periodic Table, its atomic weight is 1.00794 u, even lighter than helium.
HydrogenHeliumLithium
Lithium.
At the top of the periodic table (starting left to right, so hydrogen being the lightest)
Paleoclimatolinium;A form of hydrogen with no protons, neutrons....... only electron and cloud is present.hydrogenHydrogen is the lightest element in the Periodic Table.See the Related Questions link for more information about hydrogen.
Hydrogen is the lightest of all elements. According to the Periodic Table, its atomic weight is 1.00794 u, even lighter than helium.
Hydrogen
Hydrogen.