Variable melting points
Elements that can exist as solids, liquids, or gases at room temperature are known as metalloids. Some examples of metalloids include arsenic, antimony, and silicon. They exhibit a combination of metallic and non-metallic properties.
Ionic compounds, metallic bonded substances and amorphous substances are typically solids under normal conditions. Molecular solids generally have lower melting points so the vast majority ill be gases or liquids. A significant number with large molecules will also be solids, e.g. waxes.
Yes, neptunium is a metallic element and can exhibit a metallic luster when polished.
In metallic solids, the attractive forces that stabilize the structure primarily come from metallic bonds, which are formed by the sharing of electrons among the metal atoms. These bonds are strong and are responsible for the high melting points and conductivity typically associated with metals. Additionally, metallic solids may also experience some degree of Van der Waals forces between atoms.
The hardness of metallic solids depends on factors such as crystal structure, grain size, and purity of the metal. Metals with a more compact and ordered crystal structure tend to be harder, while impurities or defects can make a metal softer. Additionally, the presence of alloying elements can also influence the hardness of a metallic solid.
Elements that can exist as solids, liquids, or gases at room temperature are known as metalloids. Some examples of metalloids include arsenic, antimony, and silicon. They exhibit a combination of metallic and non-metallic properties.
Metallic solids are composed of individual atoms.
Brittleness. Reason: Non-metallic solids are usually brittle.
Metallic
Ionic compounds, metallic bonded substances and amorphous substances are typically solids under normal conditions. Molecular solids generally have lower melting points so the vast majority ill be gases or liquids. A significant number with large molecules will also be solids, e.g. waxes.
The solid carbon compounds are mostly molecular solids.
no
Yes, neptunium is a metallic element and can exhibit a metallic luster when polished.
They tend to be, yes
All Metals except Hg (Mercury) are solids at room temperature.
In metallic solids, the attractive forces that stabilize the structure primarily come from metallic bonds, which are formed by the sharing of electrons among the metal atoms. These bonds are strong and are responsible for the high melting points and conductivity typically associated with metals. Additionally, metallic solids may also experience some degree of Van der Waals forces between atoms.
The hardness of metallic solids depends on factors such as crystal structure, grain size, and purity of the metal. Metals with a more compact and ordered crystal structure tend to be harder, while impurities or defects can make a metal softer. Additionally, the presence of alloying elements can also influence the hardness of a metallic solid.