it's the last one because it's depended on the rock layers
Answer:
iron (III) oxide is a gas
Answer:
1. c) shiny
2) True. Reactivity is a chemical property.
Explanation:
A chemical bond which is formed in between positively charged atoms when there is sharing of free electrons in a lattice of cations is known as a metallic bond.
In a pure metal, atoms are surrounded by free moving valence electrons which move from one part of metal to another.
Thus, we can conclude that pure metals are held together by metallic bonds due to attraction between mobile valence electrons and positively charged metal ions.
