Question

does the appearance of given below items shine or not ?

Answer 1

To find:

If the given elements shine or not ?

Solution:

Points to remember:

• Any metal have an intrinsic property of shining , due to presence of free electrons on its surface.

• On the contrary , non-metals (except a few) do not show lusture and don't shine.

Refer to the table below for the answers:

$\begin{array}{|c|c|c|}\cline{1-3}{Iron & Shining & Grey}\\\cline{1-3}{Zinc & Shining & Grey}\\\cline{1-3}{Copper & Shining & Brown}\\\cline{1-3}{Sulphur & Not\:Shining & Yellow}\\\cline{1-3}{Aluminium & Shining & Silver}\\\cline{1-3}{Carbon & Not\:Shining & Black}\\\cline{1-3}{Magnesium & Shining & White}\\\cline{1-3}{Iodine & Not\:Shining & White}\\\cline{1-3}\end{array}$

Answer 2

Answer:

sample           appearance shining /             colour            

                       not shining

IRON ------------> Shining---------------------------->grey  

ZINC-------------> shining  --------------------------->grey

SULPHUR------> not shining  ---------------------> yellow

ALUMINIUm--> shining  ---------------------------> silver

MAGNESIUM ->shining -------------------------->black

CARBON -----.> not shining--------------------> white

IODINE-----------> not shining--------------------> white  

• generally metals have the  property of shining , metals are the   substance which found under the earth surface .  in impure form .

• with the property of shining  metals have other properties also like ductile, sonours , meliability .  also metals give metal oxide on heating with oxides .

• when metals are react with water it give hydrogen gas  .