Covalent Bonding Flashcards
How is a covalent bond formed?
A covalent bond is formed when a pair of electrons is shared between two atoms.
In which types of elements does covalent bonding primarily occur?
Covalent bonding occurs in most non-metallic elements and in compounds of nonmetals.
What is a key characteristic of covalent bonds?
Covalent bonds between atoms are strong.
What does covalent bonding result in the formation of?
Covalent bonding results in the formation of molecules.
Give examples of small molecules formed through covalent bonding.
- HCl
- H2
- O2
- Cl2
- NH3
- CH4
What are large molecules formed through covalent bonding called?
Polymers.
What are giant covalent structures also known as?
Macromolecules.
Provide examples of giant covalent structures.
- Diamond
- Silicon dioxide
What types of diagrams can be used to represent covalently bonded substances?
- Dot and cross diagrams
- Ball and stick models
- Two- and three-dimensional diagrams
What is the typical size (order of magnitude) of atoms compared to small molecules?
Atoms are smaller than small molecules.
What do simple molecular substances consist of?
Simple molecular substances consist of molecules in which the atoms are joined by strong covalent bonds.
