properties of elements and compounds
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Explanation:
- An element is a material that consists of a single type of atom. Each atom type contains the same number of protons.
- A compound consists of two or more types of elements held together by covalent or ionic bonds. Elements cannot be divided into smaller units without large amounts of energy.
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properties of elements
Atomic number. The atomic number indicates the number of protons within the core of an atom. ...
Atomic mass. The name indicates the mass of an atom, expressed in atomic mass units (amu). ...
Electronegativity according to Pauling. ...
Density. ...
Melting point. ...
Boiling point. ...
Vanderwaals radius. ...
Ionic radius.
properties of compounds
A compound always has the same elements in the same proportions. For example, carbon dioxide always has two atoms of oxygen for each atom of carbon, and water always has two atoms of hydrogen for each atom of oxygen.
A compound always has the same composition throughout.
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