Question

What are some examples of metallic compounds?

Answer 1

Hint: To solve this question, we first need to know what metallic compounds are. A compound that has one or more than one metal element bonded to another element is known as a metallic compound.

Complete answer:
There are many ways in which a metal can form a bond with other elements.
- Metallic bonds
When positively charged metal ions and conduction electrons are held together by the electrostatic attractive force between them, the chemical bonds that are formed are known as metallic bonds. For example, graphene.
- Ionic bonds
When two elements (which are either oppositely charged like cations and anions, or have sharply different electronegativities) are bonded by the electrostatic attraction between them, the chemical bonds formed are known as chemical bonds.
Ionic bonds are usually formed between a metal (cation) and a nonmetal (anion). For example NaCl (sodium chloride).
- Metal-metal covalent bonds
Sometimes, two metals are bonded by covalent bonds. These metal atoms pair from a crystal structure with metallic bonding between them. For example, sodium molecule $N{a}_2$, mercurous ions $H{g}_2^{2+}$ which are said to be one of the earliest metal-metal covalent bonds to be characterized, etc.
It can be said that metallic bonds are an extremely delocalized communal form of covalent bonding.
- Organometallic bonds
When a metal (including metalloids, alkaline earth, alkali, and transitional metals) and a carbon atom from an organic molecule or organyl fragments are bonded, the chemical bond formed is known as an organometallic bond.
For example, Grignard's reagent RMgX and organolithiums RLi, where R is the alkyl group and X are halides.
- Coordination Bonds
When metal ions are bonded to ligands, the chemical bonds formed are a type of covalent bond known as coordinate bonds.
For example, hexamminecobalt (III) chloride ${[Co{(N{H}_3)}_6]}^{3+}{(C{l}^{-})}_3$.
So, now that we understood different type of bond formation of metals with other atoms, some examples of metallic compounds are
- Silver nitrate ($AgN{O}_3$)
- Calcium Chloride ($CaC{l}_2$)
- Sodium chloride (NaCl)
- Aluminum sulfide ($A{l}_2{S}_3$)
- Calcium carbonate ($CaC{O}_3$)

Note:
It should be noted that metallic compounds show properties like
- Extremely high boiling and melting points
- Malleable and ductile
- Sometimes Magnetic
- Lustrous
- Good conductors of electricity and heat