The Atom

The Atom

1. The atom is the smallest part of the element

   • It contains Protons Neutrons and Electrons
     • The protons are inside the nucleus
       • The neutrons are also in the nucleus
         • And the electrons are outside on the shells

2. The first shell holds 2 electrons

   • The second shell holds 8 electrons
     • The third shell also holds electrons
       • Eight electrons is the maximum that each shell can hold accept for the first one

3. 1840 electrons is 1 proton

4. The atomic no. of a element is the no.of protons in a atom

   • The mass no. is the total number of protons and neutrons in a atom