Most elements are sufficiently reactive so it can not exist in elemental form.
The noble gases.
Yes, the halogens did occur in nature as free elements.
Very few elements exist in their free state in nature. The vast majority of them exist as compounds, chemically bonded to other elements.
Yes. copper is one of the elements that may, with luck, be found in the native state.
Depends on how easy it is to oxidize the metal, outside of gold and meteoric iron, almost all metals are found in an oxidized state.
The noble gases.
most elements have partly filled orbitals (or shells) and they try to gain, lose or share electrons so as to satisfy octet rule. Hence they are reactive and not generally found in free state
The noble gases.
Yes, the halogens did occur in nature as free elements.
iron,silver,and gold
because they are too reactive to exist on their own, they bond with other elements in nature to satisfy their need for electrons
Sodium is highly reactive and never exists in free state. It is always found in the combined state.
Very few elements exist in their free state in nature. The vast majority of them exist as compounds, chemically bonded to other elements.
Yes. copper is one of the elements that may, with luck, be found in the native state.
Gold is found ONLY in free state, since it is noble, does not tend to link. Moreover, its compounds, if were present in nature, would decompose under heat, light - to free gold
Depends on how easy it is to oxidize the metal, outside of gold and meteoric iron, almost all metals are found in an oxidized state.
Ag(silver), Au(gold), Pt(platinum), Cu(copper) are found in free state