The source I used (see the link under the related links section) states that:
SILICON
Lustre Is An Property Of Metals: Thus All Metals Have Lustre However Lead Being A Metal Is Considered To Be Non Lustrous But Actually Lead Is Bright And Silvery When Freshly Cut But The Surface Rapidly Tarnishes In Air To Produce A Dull Lustre Associated With Lead.
if it occurs between non metal atoms. Covalent bonds can only occur between non metal atoms but Ionic bonds occur between metal and non metal atoms.
Not all metals have lustre(that is, to be shiny) nor are all in solid form. It is just a characteristic property found among majority of the metals. For example, sodium is a metal which lacks lustre and mercury is in liquid form at room temperature.
Neon is a non-metal. It is one of the Noble Gasses which are all non-metals.
a metal that doesn't react with any other substance
diamond
This chemical element is iodine.
The lustre of a metal is how shiny the metal is.There are two different types of lustre. One is metallic lustre, which is like the shininess of a polished metal surface. The other is non-metallic lustre, which is the opposite of metallic lustre, but is still shiny
Lustre Is An Property Of Metals: Thus All Metals Have Lustre However Lead Being A Metal Is Considered To Be Non Lustrous But Actually Lead Is Bright And Silvery When Freshly Cut But The Surface Rapidly Tarnishes In Air To Produce A Dull Lustre Associated With Lead.
Almost all metals are lustrous and shine and some non-metals like Graphite and iodine do have some lustre.
Bromine (Br) is the only non-metal which is liquid at room temperature and pressure.
The characteristic of non-metals are-1. Non-metals are gases or solids at room temperature, except bromine, which is liquid at room temperature.2. Non-metal solids are generally not as hard as metals and have low tensile strengths. However diamond, an allotrope of carbon, is very hard.3. They do not have luster. However, silicon, iodine and graphite have metallic lustre.
Bromine (Br) is a liquid at room temperature and is a non-metal. The only liquid element that is not a metal is Bromine (Br). There is one other element that occurs in liquid form and that is Mercury (Hg).
Carbon (C) is a natural chemical element, non metal.
All elements are either metal or non-metal. The most common non-metal elements are hydrogen, carbon, nitrogen and oxygen. See 'Related Links' below
if it occurs between non metal atoms. Covalent bonds can only occur between non metal atoms but Ionic bonds occur between metal and non metal atoms.
A non-reactive metal has a high electronegativity and can react only in special conditions with nonmetals or acids.