0
Astatine is the rarest naturally-occurring element, with the total amount in Earth's crust estimated to be less than 1 oz (28 g) at any given time. This amounts to less than one teaspoon of the element. Guinness World Records has dubbed the element the rarest on Earth, stating: "Only around 0.9 oz (25 g) of the element astatine (At) occurring naturally". Isaac Asimov, in a 1957 essay on large numbers, scientific notation, and the size of the atom, wrote that in "all of North and South America to a depth of ten miles", the number of astatine atoms at any time is "only a trillion".
The least common naturally occurring element in the universe is astatine, which is a highly radioactive element with a very short half-life. It is extremely rare on Earth and is usually only found in trace amounts in uranium ores.
Add your answer:
Earn +20 pts
What element is there most of?
The most abundant element in the universe is hydrogen. It makes up about 74% of normal matter by mass.
Do metals have the most matter in the universe?
No. The most common element is hydrogen.
What is the 3rd most common element in the universe?
oxygen see link.
What is 4th most abundant element in the universe?
The 4th most abundant element in the universe is neon. It is a noble gas that makes up about 0.13% of the universe by mass, following hydrogen, helium, and oxygen. Neon is used in lighting, advertising signs, and cryogenic refrigeration.
WHAT ELEMENT IS THE 4TH MOST ELEMENT IN THE UNIVERSE?
Carbon is the 4th most abundant element in the universe, after hydrogen, helium, and oxygen.
True or false that hydrogen is the least common element in the universe?
False. Hydrogen is the most abundant element in the universe, constituting about 75% of its elemental mass.
What is the most element?
The most common element in the universe is Hydrogen.
What is common element in universe?
hydrogen 90%
What is the simplest and most common element in the universe?
hydrogen
What element is most common atom in universe?
boron
What element has formed the largest numbers of atoms?
The most common element in the universe is hydrogen.
What is the second most common element after oxygen?
The second most common element after oxygen is silicon.
What element is there most of?
The most abundant element in the universe is hydrogen. It makes up about 74% of normal matter by mass.
Is hydrogen the least common element?
No.
Which element is there the most of?
The overall most common element in our universe is Hydrogen. This differs between specific celestial bodies, as the most common element on Earth is Oxygen.
One of about a hundred basic chemicals that make up the universe?
The most common element in the Universe is hydrogen.
Do metals have the most matter in the universe?
No. The most common element is hydrogen.
