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Molecular naming coventions

Concept map A synthesis reaction or direct combination reaction is one of the most common types of chemical reactions. In a synthesis reaction two or more chemical species combine to form a more complex product. Atoms have neutron and Valency Electron Proton Atoms

H Hydrogen

2. C carbon

3. Li Lithium

4. Ti Titanium

5. Au Gold

6. Ag Silver

Molecular naming conventions Atoms are the building blocks of matter. A molecule is a group of atoms. Atoms are sometimes named after the first letter. H for Hydrogen C for carbon They are sometimes based on the first two letters Li for Lithium Ti for Titanium Sometimes the letters have nothing to do with the element. Au for Gold, Ag for silver A number following the element refers to the quantity of those atoms. The number comes after the element. For example, H2O means two hydrogens and one Oxygen, H2O4S means two hydrogens, four oxygens and one sulphur The order in which the elements are written usually follows the rule developed by Edwin Hill in 1900. According to this rule, when you have Carbon it goes first, Hydrogen is second and the rest are in alphabetical order.

H C Li Ti Au Ag