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Aluminum carbide is a compound that has a high density and is used in the metallurgy industry. It is used to make a variety of metal products and tools such as drill bits, cutting blades, etc.
Whether a compound is ionic or covalent depends on its difference in electronegativity between the two atoms involved in the bond. When the difference is too great an electron transfer will occur and this will create ionic compounds.
When the difference is small the atoms share the same pair of electrons and this is known as a covalent bond. Often when this occurs the electrons fill in the orbitals of both atoms and this is known as the Octet rule.
If you have a large difference in electronegativity and the atoms are of different types then the bond will be ionic. Alternatively, if the two atoms are of the same type then the bond will be covalent.
The most common type of bonding is between two atoms of the same element. The atoms will share a pair of electrons in order to obtain a stable valence shell.
This is important for the elements on the 3rd row of the periodic table since they can have more than 8 electrons around them and this allows them to get a stable valence shell. Hydrogen (H) is the simplest example of a chemical substance that has a covalent bond.
The main difference between a covalent bond and an ionic bond is that the valence electrons of the atoms are evenly shared in a covalent bond, whereas the valence electrons are unevenly distributed in an ionic bond. The atoms will share electrons to fill in the orbitals of both atoms so this is the reason why a covalent bond is more stable than an ionic bond.
