Question

A non metal which is lustrous is:
a.) brass
b.) graphite
c.) Silicon
d.) Nitrogen

Answer 1

Hint: Basically, non-metals are not lustrous in nature but although there are some exceptions to it. Non-metals are the components which structure negative particles by tolerating or picking up electrons.

Complete step by step answer:
The correct answer is C.
Non-metals as a rule have 4, 5, 6 or 7 electrons in their furthest shell.
Non-metals are those which do not have all the metallic traits. They are acceptable protectors of warmth and power. They are generally gases and now and again fluid. Some are even strong at room temperatures like Carbon, sulphur and phosphorus.
Attributed properties of non-metals are high ionization energies and high electronegativity.
Silicon is the most plentiful electropositive component in The Earth’s outside. It’s a metalloid with a stamped metallic gloss and is extremely fragile. It is normally tetravalent in its mixes, albeit at times its bivalent, and it’s simply electropositive in its compound conduct. In addition, pentacoordinated and hexacoordinated silicon mixes are likewise known.
Common silicon contains 92.2% of the isotope 28, 4.7% of silicon 29 and 3.1% of silicon 30. Aside from those steady regular isotopes, different radioactive fake isotopes are known. Natural silicon has the physical properties of metalloids, like the ones or germanium, arranged under it in the gathering IV of the occasional table.
Silicon is an inborn semiconductor in its most perfect structure, despite the fact that the power of its semi conduction is exceptionally expanded by presenting little amounts of polluting influences. Silicon is like metals in its compound conduct. It’s nearly as electropositive as tin and substantially more positive than germanium or lead. As per this metallic character, it structures tetra positive particles and different covalent mixes; it shows up as a negative particle just in a couple of silicides and as a positive constituent of oxyacid or complex anions.

Note: Mostly non-metals are present in 2 to 3 forms of matter in the room temperature that is gases, solids. Further non metals are not considered as solids and they don’t have ability to form stable compounds. So, as they don’t fulfil these terms and conditions hence are not lustrous.