This report on Door Lock & Lockset Manufacturing: 1  Provides Market Size information to assist with planning and strategic decisions. 2  Includes the necessary information to perform SWOT, PEST and STEER analysis. 3  Helps you understand market dynamics to give you a deeper understanding of industry competition and the supply chain.
Your first step should be to analyse the compound. For example, if the compound is carbon, you know it always has a valence of four, so, if it has a formula C2H4 (ethylene) it obviously has a double bond. There are difficulties here because benzene C6H6 can be considered to have 6 1.5 C-C bonds, being aromatic.
The Covalent Bond. Atoms can combine to achieve an octet of valence electrons by sharing electrons. Two fluorine atoms, for example, can form a stable F2 molecule in which each atom has an octet of valence electrons by sharing a pair of electrons. A pair of oxygen atoms can form an O2 molecule in which each atom has a total of eight valence electrons by sharing two pairs of electrons. The term covalent bond is used to describe the bonds in compounds that result from the sharing of one or more pairs of electrons.