Elements is the simplest form of matter which can not be changed further by chemical or physical methods. An ATOM is the simplest form of an element, some elements is a MOLECULE.
Compound contain two or more different elements in a chemically combined form. The simplest form of a compound is a molecule.Those molecules that consist of charged ions with opposite charges are called IONIC. The other type of molecules are called COVALENT and do not consist of ions.
Elements consist same type atom
See example of ELEMENTS
SYMBOL | COMMON ELEMENTS | TYPE OF ELEMENTS |
Cl2 | Chlorine | molecule |
Ar | Argon | atom |
Ne | Neon | atom |
Xe | Xenon | atom |
H2 | Hydrogen | molecule |
Mg | Magnesium | atom |
Na | Sodium | atom |
O2 | Oxygen | molecule |
Compound consist different type of atom and chemically combined.
See example of COMPOUND
SYMBOL | COMMON COMPOUNDS | TYPE |
H2O | water | covalent / molecule |
CO2 | carbon dioxide | covalent / molecule |
NH3 | ammonia | covalent / molecule |
NaCl | sodium chloride (Table Salts) | ionic / ion |
MgO | magnesium oxide | ionic / ion |
Fe2O3 | iron oxide (Rust) | ionic / ion |
HCl | hydrogen chloride | polar covalent / molecule |
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