Metals are generally good conductors of electricity.
AnswerSemi-metal And a metalloid.
Arsenic is a metalloid, which means it has properties of both metals and nonmetals. It has some characteristics of metals, like being shiny and brittle, but also has nonmetal properties, like being a poor conductor of electricity.
Nitrogen is a nonmetal. It is found in group 15 of the periodic table and typically exhibits nonmetallic properties such as being a poor conductor of heat and electricity.
Silicon is a metalloid, which is an element that has properties of both metals and non-metals. It shares some characteristics with non-metals, such as being brittle and not conducting electricity very well.
Sulfur is classified as a nonmetal. It is found in group 16 of the periodic table and typically exhibits nonmetallic properties such as being brittle, having a low melting point, and being a poor conductor of electricity.
It can be considered a metalloid, although it is commonly regarded as a metal.
silicon is a metalloid meanind it is both metal and nonmetal. it is the secon most abundant element on earth which takes up 27.7% of the Earths crust. it cannot be found in pure form
Germanium is a metalloid, which is an element that shares properties of both metals and nonmetals. It has characteristics of both categories, such as being a semiconductor like a nonmetal but also having metallic luster.
Samarium is a metal. It is a rare earth element with properties characteristic of metals, such as being shiny, malleable, and having good electrical conductivity.
Bromine is a nonmetal. It is a member of the halogen group on the periodic table and has properties typical of nonmetals, such as being a poor conductor of electricity and having low melting and boiling points.
Iodine is a nonmetal. It belongs to Group 17 of the periodic table, known as the halogens, and exhibits typical nonmetallic properties such as being a poor conductor of heat and electricity.
It would help if you specify whether you are talking about thermal conductivity, or electrical conductivity. Diamond certainly doesn't has the highest electrical conductivity. Its thermal conductivity is one of the highest known, and - if a synthetic diamond is made from pure (99.9%) C-12, it is indeed the highest. The Wikipedia article attributes this to a strong covalent bonding.