Number of electrons in the outer shell
The chemical behavior of different elements is determined by valence electrons.
the chemical and physical behavior of metallic elements
Elelments are determined by the amount of protons they have. While different elements can have the same number of neutrons and protons, no two different elements can have the same amount of protons.
The highest level. Or the outer, valence shell.
They can react with each other
the chemical and physical behavior of metallic elements
chemical behavior of a substance means how a substance behaves when it is reacted or kept isobaric with other substances or elements
chemical behavior of a substance means how a substance behaves when it is reacted or kept isobaric with other substances or elements
Now are known 118 chemical elements.
Salts are chemical compounds not elements.
- allowed rational ordering of chemical elements- predicted the properties of unknown elements- the chemical behavior of chemical elements can be predicted- the atomic radius can be predicted- the melting point can be predictedand more
their boiling point and melting point.....etc.