Name
utch each diagram with its correct description. diagrams will
0
0
а
b
1. pure element - only one type of atom present.
__2. mixture of two elements - two types of uncombined atoms present.
3. pure compound - only one type of compound present.
4. mixture of two compounds - two types of compounds present.
5. mixture of a compound and an element.

explanation:

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.