The noble gases, gold and platinum.
Elements that exist in nature as uncombined atoms are called native elements. Some examples include gold, silver, copper, and graphite. These elements are typically found in their pure form due to their stability and inert nature.
Sodium is very reactive and this is the cause for which there doesn't exist uncombined in nature.
The noble gases generally exist in nature in monoatomic form. Some metals are unreactive enough to exist in nature as pure "nuggets" of metal; gold is probably the most notable, but there are places where one can find nuggets of (nearly) pure copper as well.
Elements with higher reactivity are less likely to exist in an uncombined form because they readily form compounds with other elements due to their tendency to gain or lose electrons. In contrast, less reactive elements are more stable and are often found in their uncombined form in nature.
Noble gases, such as helium, neon, and argon, exist in nature as isolated atoms because they have a stable electron configuration. These elements do not readily form chemical bonds with other elements.
Pure hafnium doesn't exist in the nature; hafnium form many compounds.
Metals that can be found uncombined in the Earth are referred to as "native metals." These metals, such as gold, silver, and copper, exist in their elemental form rather than as compounds. Native metals typically occur in their pure state due to their resistance to oxidation and corrosion, allowing them to remain uncombined with other elements in nature.
Helium, neon, and argon are the only elements that exist in nature as isolated atoms, due to their stable electronic configurations that do not readily form chemical bonds with other elements. These elements are known as noble gases for their inert nature.
Copper and iron can exist in their uncombined form in nature as pure elements because they are relatively stable metals. This means that under certain conditions, they can exist in a metallic state without needing to form compounds with other elements. In the case of copper, it is often found in its pure form as nuggets or veins in the Earth's crust, while iron can also be found in its pure state in meteorites or certain iron-rich minerals.
Elements can either be synthetic or natural. Synthetic elements are made artificially in laboratories, while natural elements exist in their natural state in nature. Natural elements can further be defined as native elements. These elements exist in their uncombined state.
Atoms of all elements exist in the state of matter known as the gas phase.
Yes, The elements hydrogen, nitrogen, oxygen, and sulfur are all molecular elements that exist in nature. Due to their reactivity, it is rare to find the halogens and phosphorus in their elemental forms in nature.