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All elements are different from each other, that is why they are called elements. They have a different number of subatomic particles making them different.
Carbon is the key element in making a compound organic. It has a 4+ charge, so, it will react to other elements accordingly
for making elements from helium to nickel and iron, thermonuclear fusionfor making elements past nickel and iron a supernova explosion is needed to force nuclei to fuse more, this destroys the star
A rare-earth element with the symbol Er and atomic number 68. It is a silvery-white solid metal that can be used in optical amplification media for laser applications. It has optical fluorescent properties and is found in chemical combination with other elements.
for making elements from helium to nickel and iron, thermonuclear fusionfor making elements past nickel and iron a supernova explosion is needed to force nuclei to fuse more, this destroys the star
they combine with themselves atoms of different elements connot combine with each other wothout making a new molecule
One or more subjects and a setting that concentrates the viewer's interaction on the subjects, not the background or other distractions. A formal, stuffy pose need not be part of the equation.
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Chlorine was isolated before fluorine because fluorine is the most reactive element and can react to the most other elements, making it hard to isolate and separate from other elements.
Gold and silver are two separate elements: one cannot be made from the other.
An optical cable is a plastic or fiberglass wire that transmits digital audio from one device to the other.