Isoptopes and Atoms

Isoptopes and Atoms

1. Isoptope

   • An element with the same number of protons but a different number of neutrons
   • The same atomic number but a different mass number
   • Chemical properties of isoptopes
     • Mostly the same or very similar
       • This is because chemical reactions generally involve electrons and not protons or neutrons
   • Physical properties of isotopes
     • Different because the atomic masses of different isoptopes differ.
       • Affects physical properties such as densities and temperatures of changes of state

2. Atoms

   • Atoms of the same element have the same number of protons. Atoms of a different element have a different number of protons
   • Atoms make up every substance
     • Elements are substances that are made of only one sorf of atom
       • Elements are grouped in the periodic table
         • The atoms of each element are represented by a chemical symbol