Most natural elements are formed in stars through nuclear fusion processes. In the cores of stars, hydrogen atoms fuse to create helium and, in larger stars, heavier elements up to iron are produced. Elements heavier than iron are typically formed during supernova explosions, where the intense energy allows for the fusion of heavier nuclei. Additionally, some lighter elements are formed in processes like cosmic ray spallation and during the Big Bang nucleosynthesis.
b. water
Compounds are formed from elements.
All the existing elements are natural the man made elements are rare and have a very short life.
Compounds are formed when elements of matter are chemically combined.
A natural boundary is a physical boundary that is formed by geographic features such as mountains, rivers, or oceans. These boundaries are created by natural elements and can help define borders between regions or countries.
All the natural or artificial materials are formed from chemical elements, without any exception.
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Most of the atoms in living things come from just six elements. These elements are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur. Scientists theorize that these elements, along with all 93 natural elements, were created in the centers of stars billions of years ago, shortly after the universe formed in a violent explosion.
A natural gas is, as it would lead you to believe, a natural gas, meaning a gas formed naturally, for example, oxygen, nitrogen, hydrogen, argon... the elements in the air are natural.
Compounds are formed from elements.
Red bone marrow
Most of the natural occurring (isotopes of) elements are NOT radioactive.Though most of all the known isotopes are radioactive but most of them do NOT naturally occur.
Political
Like most elements, selenium was formed in the cores of stars.
Yes - in fact, most of the elements ONLY exist because they were formed in stars.
Thorium is a natural chemical element; chemical elements were formed by stellar nucleosynthesis at the beginning of the universe.
All the existing elements are natural the man made elements are rare and have a very short life.