It isn't; heavier elements can be, and are, produced by DYING stars.
The reason is the "packing fraction curve". As atomic nuclei would fuse together within the cores of normal stars, hydrogen atoms as "fuel" would fuse into helium "ash"; when the star became old, the core of the stars would heat up and become more dense as the star began to collapse into itself. The denser stellar core material would heat up and begin to fuse into heavier elements; carbon, oxygen, and heavier elements, releasing a little energy every time a new atom was formed by fusing together lighter ones - UNTIL they got to iron.
Once you get to iron, any additional fusion sucks energy OUT of the star's core, and every fusion from there on sucks even MORE energy out of the star, leading to the star's quick collapse. This is one scenario for how a "nova" might occur.
If a star EXPLODES in a supernova, then there's LOTS of energy to crash even heavy elements together into even HEAVIER elements. So all of the gold, uranium, lead, and every atom heavier than iron, was formed in a supernova explosion.
Helium.
George Lucas produced Star Wars first in 1977 and Paramount Pictures produced in 1979 Star Trek: The Motion Picture .
It's a game/reality show, like Next Food Network Star. The winner will join the other iron chefs.
During the main life cycle of a star, no elements heavier than iron can be created, and that's only in very massive stars (our sun is only massive enough to fuse hydrogen into helium). Your question is a very good one, and if you thought of it on your own, you should be proud. Every element heavier than iron is created when the star dies. Specifically, when it becomes a super-nova. When all the lighter elements have been fused, the star can't generate enough energy to resist its own gravity, so it collapses in on itself. The result is a sudden gigantic spike in pressure that creates all the heavier elements. As if it weren't cool enough that we're all made from star-stuff, a good bit of us is made from supernovae, too!
The first Star Wars Monopoly board game was first produced in 1996 by Parker Brothers and Waddington Games. The standard board game was released on October 31, 1997.
The heaviest element that can be produced prior to supernova is Iron (Fe).
Iron is an element, and is the heaviest element that may be made by fusion in a Star such as our Sun.
Iron is an element, and is the heaviest element that may be made by fusion in a Star such as our Sun.
Iron is the heaviest element made in the bowels of any star with the exception of a supernova explosion. All natural elements heavier than iron come from one of those.
In very massive stars, Iron is sometimes generated.
Helium.
Iron is a chemical element. It is not a compound or a mixture. An element is a substance composed of only one type of atom. In the case of iron, it consists entirely of iron atoms. Iron is one of the 118 known chemical elements and is represented by the symbol "Fe" on the periodic table. It is a fundamental building block of matter and cannot be broken down into simpler substances through chemical reactions.
It isn't. Heavier elements are formed in stars as well. Iron is basically the heaviest element for which energy can be gained. When converting iron into heavier elements, energy is lost. However, this doesn't stop supernovae, at a temperature of about one gigakelvin (a billion degrees), to form heavier elements. In fact, the interior of stars is practically the ONLY way such elements can be formed.
IRON
Lead is a heavy metal. An element. Atomic number 82 (has 82 protons in nucleus). Symbol is Pb, which comes from its Latin name plumbum. It is also the most nuclear stable element. That is, it is the end product of fusion. It is the heaviest element that is produced under normal fusion conditions in a star. Heavier elements (produced usually in supernova) decay usually into lead.
Yes, Iron atoms were produced via fission in the core of an ancient star that has died. We are all stardust.
The heaviest element that our Sun produces is probably silicon; the core temperature and pressure would need to be MUCH higher to produce heavier elements. The heaviest element that can be produced in ANY star is iron.The reason for this is something called the "packing fraction curve". As light elements are fused into heavier elements, they release energy; this is how the Sun and other stars work, by fusing hydrogen into helium. Toward the end of a star's life, the temperature and pressure increase enough to fuse helium into carbon, and then carbon into heavier elements, but each stage releases less and less energy. Finally, when elements fuse into iron, you can get no more energy out. To fuse iron into heavier things, or anything into elements heavier than iron, you must put energy IN. When a star begins fusing iron into heavy elements, it suddenly stops producing energy to support the star against the tremendous gravity, but instead starts sucking energy OUT of the core of the star to power fusion!This loss of energy from the core of the star causes a sudden and catastrophic implosion as the core of the star collapses the core into a black hole or neutron star, and the outer layers of the star are compressed and expelled in a shock wave that creates gigatons of heavy elements and throws the remainder of the star's mass into space; a supernova explosion.So, nothing heavier than iron can be produced in a normal star; heavier elements are only created in supernovas.