An element can be found in nature in atomic and molecular states. For example, Oxygen is most often found in nature in its molecular state - O2. (its atomic state would be O-) Note: Oxygen can be found in many other states such as O3, ozone.
Helium, by contrast, is found in its atomic state in nature - He. It does not need to be bound to another molecule.
because they exist at the pure state.they didn't make by humans(92 atoms natural and 15 atoms artificial)
Yes, but not usually in isolation. Everything tangible is composed of atoms, and many substances occur naturally.
A natural atom is one that has the same number of protons, neutrons, and electrons
Positive electrical charges of protons are neutralized by negative electrical charges of electrons.
94 kinds of atoms occur naturally on earth
i think 94 kinds of atoms occur to earth
There's acutely 90
These are the artificial radioactive chemical elements.
90 occur naturally - others have been made in nuclear reactors etc
94 kinds of atoms occur naturally on earth
i think 94 kinds of atoms occur to earth
i think 94 kinds of atoms occur to earth
There's acutely 90
2 out of 1,ooo,ooo,ooo
These are the artificial radioactive chemical elements.
90 occur naturally - others have been made in nuclear reactors etc
It DOES occur naturally. It is an ore. It is not man made.
Thallium, discovered in 1861, does occur naturally, but not in its pure form.
Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.
Naturally. Carbon atoms are present in everything that are organic or are organic derivatives. In any substance obtained from plants or animals, carbon atoms are naturally present.
Chlorine gas does not occur naturally as it is too reactive. Chloride salts occur naturally. The most common is sodium chloride, NaCl. Chlorine, Cl2, is obtained by electrolysing molten NaCl.