Atoms and their interactions

Atoms and their interactions

1. Elements

2. Atoms

   • The smallest particle of an element
   • Basic building blocks of matter
   • All atoms have a similar structure
     • Nucleus in the middle
       • Aways contanis protons
         • Positive charge
         • Each element has distinct characteristics as a result of the number of protons in a nuclei.
       • Sometimes contains neutrons
         • No charge
     • Electrons around the nucleus
       • Negatively charged
       • Held in place by their attraction to the positive charge
       • impossible to pinpoint the exact location of an electron

3. Isotopes of an Element