Chlorine is the second lightest member of the halogen elements or group 17.
Helium is the second lightest element and the second most abundant element in the observable universe.
helium
Hydrogen is the lightest element. The isotope protium is the lightest kind of hydrogen atom.
Helium is very light. it is the second lightest element
Balsa wood is the lightest.
balsa
I'm pretty sure it's balsa wood.
Birch
Lithium is the lightest metal, Potassium is the second lightest -- density about 0.86 kg/L
Usually Birch.
Helium!
Western cedar.
The lightest type of wooden bat i have used has been Ash, it is very durable, light and has a good pop to it.
Helium but it is noble gas. Lithium is the lightest solid element that found in natural form.
Balsa is the lightest natural wood in the world.
second