0
The explosion of a supernova. Some astrophysicists don't believe that even THAT would suffice to make some of the very heavy elements such as gold or uranium; they believe that only the collision of two neutron stars would release enough energy to do that.
The problem is the "packing fraction" curve. Two atomic nuclei can smash into each other at high energy and release a little bit of energy as the nuclei come together, or "fuse". When two or more hydrogen atoms smash into each other in the cores of stars, they fuse into helium, and we call this "nuclear fusion".
As we smash heavier and heavier elements together, they release smaller and smaller amounts of energy in fusing - until we get to iron. Once you start fusing elements together to get stuff heavier than iron, you have to PROVIDE energy to complete the reaction. Think of the packing fraction curve as a valley, with iron at the bottom of the valley. As you roll your bike down the hill from one side, you can coast because gravity is providing energy. Once you pass iron (at the bottom of the hill) you need to start putting in your OWN energy, by pedaling.
What else can I help you with?
What elements are produced in a supernova event?
In a supernova event, elements such as hydrogen, helium, carbon, oxygen, and heavier elements like iron are produced through nuclear fusion and nucleosynthesis processes.
How can I create a unique and memorable event using a combination of train balloons?
To create a unique and memorable event using a combination of train balloons, you can design a train-themed balloon decoration that incorporates different types of train balloons, such as locomotives, train cars, and tracks. You can also consider adding interactive elements like a balloon train ride or a balloon train race to engage guests and make the event more memorable. Additionally, incorporating train-themed activities, games, and snacks can enhance the overall experience and leave a lasting impression on attendees.
What is event listener?
An event listener is a function in programming that waits for a specific event to occur, such as a user interaction with a webpage or a change in a variable's value. When the event occurs, the listener executes a specified action or set of instructions. Event listeners are commonly used in web development to create interactive and dynamic websites.
What created the initial singularity?
The initial singularity, which is believed to be the starting point of the universe, was created by a rapid expansion of energy and matter. This event is known as the Big Bang.
What is the role of event listener?
An event listener is used in programming to listen for specific events, like user interactions or system events, and triggers a response or function when that event occurs. It allows for interactive elements in a program or website to respond dynamically to user actions, making the interface more engaging and user-friendly.
What elements are produced in a supernova event?
In a supernova event, elements such as hydrogen, helium, carbon, oxygen, and heavier elements like iron are produced through nuclear fusion and nucleosynthesis processes.
What elements are formed during a nova or supernova?
It is the elements heavier than iron that are formed in a supernova. All the heavier elements up through uranium appear when a star of sufficient mass collapses in a supernova event. These heavier elements, sometimes referred to as the trans-iron elements, appear in the collapse of a massive star. In this catastrophic event, the iron and silicon (and any other lighter elements) in the star are super compressed. The already hot conditions are made even hotter, and the available energy is sufficient to drive the fusion reactions that create the trans-iron elements.All the fusion reactions up through those that create iron are exothermic, and that means they release energy. The fusion reactions that create the trans-iron elements are endothermic, and that means energy has to be put into them. Only in the collapse of a star of sufficient mass is there enough energy to drive the fusion reactions that produce the trans-iron elements.See periodic table (iron is number 26).See related link.
How are heavier elements formed in the universe?
Heavier elements are formed in the universe through a process called nucleosynthesis, which occurs in the cores of stars during fusion reactions. Elements like carbon, oxygen, and iron are created when lighter elements combine under extreme heat and pressure. Supernova explosions also play a crucial role in producing even heavier elements like gold and uranium.
How can I create stunning ice cube flowers for a special event?
To create stunning ice cube flowers for a special event, you can use flower petals or small flowers and place them in an ice cube tray. Fill the tray with water and freeze it. The result will be beautiful ice cube flowers that can be added to drinks or used as decorative elements for your event.
Determine the event space for rolling a sum of 11 with two dice How many elements are in the event space?
There are two elements in the event space. They are the rolls (6, 5) and (5, 6) .
How is it that the core of the earth terribly hot?
Mainly due to the decay of radioactive elements which create heat. Also due to the heat from Earth's creation, and from an event known as the "Iron Catastrophe".
How can I create a gag speech generator for a comedic event?
To create a gag speech generator for a comedic event, you can use a combination of funny phrases, jokes, and humorous prompts. You can also incorporate random generators or templates to mix and match different elements of the speech. Additionally, consider adding options for customization to tailor the speech to the specific event or audience. Testing and refining the generator will help ensure that it delivers laughs and entertainment for the event.
What is stellar nucleosynthesis?
Supernova nucleosynthesis is the process where new elements heavier than iron are created through nuclear fusion when a star goes supernova. During the "normal" life of a star, it fuses hydrogen into helium, and also fuses lighter nuclei together to make heavier nuclei, at least up through iron. But after the star completes the fusion of much of its bulk into iron, it no longer continues to function as a fusion engine. The fusion processes up through those that produce iron are all exothermic, and this released energy sustains further fusion throughout the life of the star. Toward the end of its life, the star can no longer operate the "regular" way it was in normal stellar nucleosynthesis. Recall that fusion is releasing huge quantities of energy and trying to "blow up" the star, but massive gravity keeps everything together. These two forces, fusion and gravity, operate at equilibrium. After exhausting most of it fuel creating iron, gravity wins and the star collapses. This collapse adds to the star's energy, and the collapse will add tremendous quantities of heat to the stellar plasma. This heat will provide energy for the endothermic fusion reactions that create the trans-iron elements and the star will go supernova, if it is of sufficient mass. With all the extra heat provided by the collapse of a sufficiently massive star, the fusion engine will be jump started. The heat-consuming fusion reactions that create the trans-iron elements will have the energy they need to drive them, and the supernova will create lots of material with nuclei heavier than iron. Additionally, this material will be blown across the universe to fertilize other newly forming solar systems. Links are provided below for more information.
What natural event provides enough energy for the nuclear fusion reactions that create the heaviest elements?
The violent creation of the solar system. There where much heavy elements on this planet before are civilization started its climb. These elements that we have now will deplete further and will not leave much left for the next civilization. It is a act of constant depletion.
What is the changing of water to liquid gas?
Is an impossible event. That would be true magic! Elements that are needed to create gas are not in water.
How can I create a stunning balloon wall decoration for my upcoming event?
To create a stunning balloon wall decoration for your event, you can start by selecting a color scheme that matches the theme of your event. Then, inflate balloons in various sizes and shapes to create visual interest. Use a strong adhesive, such as double-sided tape or glue dots, to attach the balloons to a wall in a pattern or design of your choice. Consider adding other elements like greenery or lights to enhance the overall look.
How light elements and heavy elements formed differently?
The formation of the elements is a nuclear process that usually happens in stars. The core of the star is hot enough and has enough pressure to overcome the electric repulsion of the atomic nuclei and literally fuse the nuclei together. This process happens over and over again, but seems to stop at a certain mass. It appears that elements heavier than iron cannot be formed in the core of a star. These elements require more extreme conditions. The heavier elements on the Periodic Table (after Fe) are formed in supernova. These nuclei require tremendous energy to form, this energy must come from an event as large as a supernova.
