True. Metalloids look like metals but are brittle and are not good conductors.
Metals are good conductors. Some non-metals are good conductors, but many others are not.
Metalloids are unlike the inner transtion metals and all other metals. They are giant molecules whose bonding could be described as covalent. However consider silicon - perhaps the most widey used metalloid- it has a structure like diamond with tetrahedral bonds- but it is a semiconductor- this is because in molecular orbital terms the antibonding orbitals are sufficiently close to the energy of the bonding orbitals (band gap -using the nomenclature of band theory) for thermal excitation into the antibonding orbitals to take place.This is an oversimplification.
Yes, it is correct.
False
Yes, ionic bonds typically form between metals and nonmetals because the electronegativity difference between these types of elements is usually large.
If that's a true/false question, then the answer is "false." Otherwise I don't know what you mean.
False. its metals
It is not true; many metals are very reactive and several nonmetals are nonreactive.
Metals are good conductors. Some non-metals are good conductors, but many others are not.
False. Nonmetals are poor conductors of heat and electricity compared to metals. This is because nonmetals have fewer free electrons available to carry an electric current or transfer thermal energy.
Metalloids are unlike the inner transtion metals and all other metals. They are giant molecules whose bonding could be described as covalent. However consider silicon - perhaps the most widey used metalloid- it has a structure like diamond with tetrahedral bonds- but it is a semiconductor- this is because in molecular orbital terms the antibonding orbitals are sufficiently close to the energy of the bonding orbitals (band gap -using the nomenclature of band theory) for thermal excitation into the antibonding orbitals to take place.This is an oversimplification.
false, most of the materials are metals. Non-metals are usually gases like hydrogen, oxygen and nitrogen. There are many more metals.
Yes, it is correct.
False
Yes, ionic bonds typically form between metals and nonmetals because the electronegativity difference between these types of elements is usually large.
True. Metals typically form cations by losing electrons to achieve a stable electron configuration. This results in a positively charged ion that is attracted to negatively charged species, such as nonmetals or other negative ions.
Most elements are metals.