What is the rarest element in the universe?
AstatineAstatine is the rarest naturally occurring element..
What’s the least common element?
ThuliumThe chemical composition of the earth is quite a bit different from that of the universe. The most abundant element in the earth’s crust is oxygen, making up 46.6% of the earth’s mass. Thulium is the least abundant element. Response last updated by gtho4 on Dec 13 2016.
What is the rarest element on earth?
element astatineA team of researchers using the ISOLDE nuclear-physics facility at CERN has measured for the first time the so-called electron affinity of the chemical element astatine, the rarest naturally occurring element on Earth.
What is the most common element in the universe?
HydrogenHydrogen — with just one proton and one electron (it’s the only element without a neutron) — is the simplest element in the universe, which explains why it’s also the most abundant, Nyman said.
What is the hardest thing in the universe?
Summary: A team of scientists has calculated the strength of the material deep inside the crust of neutron stars and found it to be the strongest known material in the universe.
What is the hardest thing to find on Earth?
AstatineEspecially Astatine (At). That’s pretty much the hardest thing to find anywhere. The NPR says that Astatine is so rare that it’s never even been seen directly because if you managed to actually get enough of it together, it would vaporize itself with its own radioactive heat.