Mostly true, though methylamine and ethylamine are both gases at room temperature.
The dividing line between liquids and solids at room temperature of 1-aminoalkanes is about 1-aminododecane, which melts at 27-29 degrees Celsius.
Fullerenes can exist in different forms at room temperature, including solids, liquids, and gases. The most common form of fullerenes found at room temperature is solid, such as C60 which has a fullerene structure.
No. The majority of known elements are solids. Only two known elements are liquid at room temperature.
Most metals at room temperature are in the solid phase. Gold is the most malleable and ductile of all known metals.
melting point and/or freezing point (they mean the same thing/are the same temperature)
I think Helium is the only standout that cannot be made into a solid at low enough temperature. All solids may be made into a gas /plasma at high enough temperature. add. note. Maybe He can be made solid with sufficient pressure - but maybe only the Sci-fi writers know.
Solid
No. Many compounds are liquids (water, hexane) and gasses (carbon dioxide, ammonia) at room temperature. Many compounds are solid at room temperature and can, but often do not exist in the form of a powder.
Most elements exist in the state of matter known as solids at room temperature and pressure. Some elements can also exist as liquids or gases depending on the conditions.
solid compounds. When pure still solid and mainly metallic
Fullerenes can exist in different forms at room temperature, including solids, liquids, and gases. The most common form of fullerenes found at room temperature is solid, such as C60 which has a fullerene structure.
Solid
No. The majority of known elements are solids. Only two known elements are liquid at room temperature.
With the exception of mercury and bromine, which is a liquid, metals are solid at room temperature.
Most metals at room temperature are in the solid phase. Gold is the most malleable and ductile of all known metals.
Nonmetals typically exist in the solid or gaseous state. At room temperature and pressure, nonmetals such as carbon, sulfur, and bromine can be found as solids, liquids, or gases depending on their specific properties.
Covalent.Every compound can exist as a solid, liquid, or gas, given the right temperature and pressure. This is also true of every element, with the single exception of helium, which has no solid phase, no matter how cold it is. Helium is unique.
At stp (standard temperature and pressure) silver is a solid. The only elements that are liquids at stp are bromine and mercury. There are more elements that are gases than liquids.