Calcium is in your bones and teeth; potassium is in your kidneys and blood; iron is in your blood (as part of haemoglobin); iodine makes its way to the thyroid gland in your neck.
Yes.
Elements heavier than iron are formed in super-nova explosions.
They were formed in supernovae.
Iron. During supernova explosions, heavier elements are created through nucleosynthesis as the star undergoes various fusion processes. These elements are then dispersed into space, eventually contributing to the formation of planets and other celestial bodies.
Lighter elements are composed of fewer protons and neutrons compared to heavier elements. They tend to have fewer total nucleons and lower atomic numbers. Lighter elements are typically found at the beginning of the periodic table, while heavier elements are found towards the end.
This process is known as nuclear fusion. It occurs in stars like the sun when lighter elements such as hydrogen are combined to form heavier elements like helium, releasing a large amount of energy in the process.
Heavier elements in the universe were primarily formed through nuclear fusion processes in stars. During their lifecycles, stars fuse lighter elements, like hydrogen and helium, into heavier elements in their cores. When massive stars exhaust their nuclear fuel, they undergo supernova explosions, which scatter these heavier elements into space, enriching the interstellar medium. Additionally, processes like neutron capture during these explosive events contribute to the creation of even heavier elements.
Almost all solid elements are heavier than air. This is why these elements do not float under normal atmospheric situations.
After using up its hydrogen-1, the star becomes a red giant. It will start fusing helium-4 into heavier elements. It may also fuse heavier elements, to get other elements that are yet heavier.
I think it's our Sun which gets heavier elements from fusion of hydrogen and other light elements.Edit: Our Sun does create helium from hydrogen by fusion, but that's all. The reason it has heavier elements is that these come from the nebula that formed the Sun. The heavier elements are thought to have come from stars that exploded as "supernovas", a long time ago.
When heavier elements undergo fusion, they release energy in the form of light and heat. This process can only occur in extreme conditions, such as the high temperatures and pressures found in stars or during a thermonuclear reaction. Fusion of heavier elements can lead to the formation of even heavier elements and can release a tremendous amount of energy.
New elements - helium always, heavier elements often (up to iron) and heavier than that if the star explodes.