The answer is Gallium Ga stands for giga-ani meaning 'billion years' and is also the periodic symbol for this element.
gigayear or gigaannum
N(eon).
neon
Most of them are 5 billion years old or older. They were formed in stars by thermonuclear fusion. When those stars became novae or supernovae, the atoms were blasted out into space. Some of these would have formed the stellar nebula from which our solar system condensed. Since the sun is around 4.5 billion years old, these atoms, which must have become part of the solar nebula before that, must be older than 4.5 billion years.
All elements are made up of molecules.
No! Molecules are made of elements. Elements are not made from anything else except the subatomic particles protons, electrons, and neutrons.
Elements (like, on the periodic table) are pure substances. ( they're made of themselves
Calcium chloride, CaCl2, is made of the elements calcium and chlorine.
13.7 billion years ago.
4.5 billion years ago.
4.6 billion years ago
All the chemical elements were made in the nuclear fireball that eventually became the earth, about 5-6 billion years ago. At that time the earth was in fact a small star
Approximately 4.5 billion years ago.
In theory, all elements are naturally made, but many of the large ones have decayed into smaller elements over billions of years
6 billion years ago. It is the mineral Olivine which is what our mantle is made of
About 4.5 billion years ago, although some scientists claim closer to 4.7 billion years ago. Given how little we really know about cosmology and physics, it's difficult to be sure. Since the universe is about 14.5 billion years old, that indicates that the Sun and our solar system formed when the universe itself was about 10 billion years old, which was time for many generations of stars to form, burn themselves out, and explode. This makes sense, because the planets are made of heavier elements that did not exist until they were created in the fires of supernova explosions.
4.5 billion years ago. I believe it was a Monday.
the Sahara desert was made around 4.6 billion years ago when the earth was created.
Scientist thought the first cells were made about 3.6 billion years ago.
the Chinese state was made 4.5 billion years ago