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What do you mean by "heaviest"? If you have a lot of feathers, it weighs more than a little bit of lead! There are two ways to answer this question. One is what is the element with the highest atomic weight, and what is the element with the highest density. The element with the highest atomic weight is the heaviest for the same number of atoms, and the most dense element is the heaviest element for the same volume of material.
Uranium (U) (atomic number 92) is the naturally occurring element with the highest atomic weight. Plutonium might be argued to be the heaviest naturally occurring element, but it many scientists disregard this. A few atoms of plutonium have been detected in naturally occurring uranium, but the trace ammounts were formed by neutron capture where some neutrons released in the natural decay (spontaneous fission) of uranium were captured by some other uranium atoms and transmuted into plutonium.
Ununoctium (Uuo) (atomic number 118) is the heaviest synthetic element, although only a couple of atoms have ever been made!
The most dense element is osmium (Os), which a density of 22.61 grams per cm3 (which is 22.61 times more dense than water!) That's almost twice the density of lead!
See the Related Question below for more information about the most dense elements.
Natural, known or possible?
- Natural 92 Uranium Heaviest element of all those in the earth when it formed (~6 billion years ago) that has not decayed to practically undetectable levels due to a short halflife.
- Known 112 Copernicium This changes periodically but as of February 24, 2010 element 112 was the heaviest known.
- Possible ∞ "Infinitium" I see no theoretical reason limiting the heaviest element, only practical.
What else can I help you with?
What is heaviest element on the periodic table of elements?
The heaviest element in the periodic table (known in March 2013) is ununoctium.
Which of the group 3A elements is the heaviest?
Thallium
What are the heaviest metals on the heaviest metals list?
The heaviest metals on the periodic table are typically considered to be elements like uranium, plutonium, and curium. These elements have high atomic numbers and are known for their dense and heavy properties.
Is hydrogen one of the most heaviest elements in the universe?
No.
Is hydrogen one of the heaviest elements in the universe?
It is not. It is the lighest.
What are the 2 heaviest elements in the periodic table?
Uub and Uuq are listed on most periodic tables as the heaviest elements. (You can check the number at the bottom of the box, that is its atomic mass or weight
Where are the heaviest elements on the periodic table?
At the lower right corner of the Periodic Table.
What is used to form super heavy elements?
The heaviest elements occurring in nature are formed inside supernovae, through nucleosynthesis.
What is the heaviest element silver gold iron or copper?
Gold is the most dense of these elements
What is the heaviest type of element?
The heaviest natural element is Uranium (number 92). There are made heavier elements (I think the heaviest is ununheksium, number 116), but these atoms only live in less than a second before they split into smaller atoms.
Are there no new elements to be discovered?
No. Uranium is the heaviest naturally occurring element. More elements can be prepared artificially. New isotopes of the element may be discovered.
Which element has the heaviest atoms from the group calcium fluorine uranium?
Uranium has the heaviest atoms out of these three elements. It is a radioactive element with atomic number 92 and a relatively high atomic mass.
