because going down the group the size of the atom increases bcz of shielding efffect etc. due to which the netineraction between the atom and the outermost electron decreases so these electrons on the surface of iodine become excited by absorbing heat energy from light so when they release this energy and come to their normal state, they emit this light so it appears that thay have lustrous surface
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
Magnetite crystals have a metallic lustre.
Iodine
yes lithium does have luster it is metalic
iodine& grams iodine Gram's iodine is a solution of 2% iodine and 3% potassium iodide in 70% ethanol. Gram's iodine is also used as a forensic toxicology reagent for the detection of alkaloids, as a source of iodine for iodometric titrations, as an indicator for the presence of starch, and as a general laboratory source of iodine/iodide. This solution is laboratory grade, and not for medicinal use. Iodine is non metallic,dark gray,lustrous,solid element
Bromine is a reddish brown liquid at room temperature, is reddish brown as a gas. As a solid (below its melting point -7.2 °C, 19 °F) it does have a metallic lustre. This is similar to iodine which is solid at room temperature and has a metallic lustre too.
Copper is said to have an orangey-red metallic lustre.
Lustre.
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
It sort of has this dark metallic look to it
Luster (or Lustre) is a description of the way light interacts with the surface of a crystal,rock or mineral - For example a metallic lustre or silky lustre.
Luster (or Lustre) is a description of the way light interacts with the surface of a crystal,rock or mineral - For example a metallic lustre or silky lustre.
iodine is not metallic
This chemical element is iodine.
Almost all metals are lustrous and shine and some non-metals like Graphite and iodine do have some lustre.
Magnetite crystals have a metallic lustre.
All Alkali metals show metallic lustre ,which can be explained by the oscillation of free electrons.