~ Aluminium, copper, gold, silver.
2) How about atom arrangement for pure metal?
When force is applied, layers of atoms in pure metal slide.
So, metals are ductile.
There are empty space between the atoms. When it is knocked, the shape of the metal changes.
So, metals are malleable.
4) What are properties of pure metals? Can we just name two of them.
Now, let's look at atom arrangement in alloys.
5) What is alloy?
It is a mixture of two or more elements with a certain fixed composition in which the major component is a metal.
Now, Try to imagine when an alloy is knocked. When a force is applied to an alloy?What happened to its layers of atoms? What is the role of the foreign atoms?
6) Why alloy is harder? more malleable and ductile than its pure metals?
Perhaps now your have a better answer.